+++ /dev/null
-/* Jim - A small embeddable Tcl interpreter
- *
- * Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>
- * Copyright 2005 Clemens Hintze <c.hintze@gmx.net>
- * Copyright 2005 patthoyts - Pat Thoyts <patthoyts@users.sf.net>
- * Copyright 2008,2009 oharboe - \81Øyvind Harboe - oyvind.harboe@zylin.com
- * Copyright 2008 Andrew Lunn <andrew@lunn.ch>
- * Copyright 2008 Duane Ellis <openocd@duaneellis.com>
- * Copyright 2008 Uwe Klein <uklein@klein-messgeraete.de>
- * Copyright 2008 Steve Bennett <steveb@workware.net.au>
- * Copyright 2009 Nico Coesel <ncoesel@dealogic.nl>
- * Copyright 2009 Zachary T Welch zw@superlucidity.net
- * Copyright 2009 David Brownell
- *
- * The FreeBSD license
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE JIM TCL PROJECT ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * JIM TCL PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * The views and conclusions contained in the software and documentation
- * are those of the authors and should not be interpreted as representing
- * official policies, either expressed or implied, of the Jim Tcl Project.
- **/
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#define __JIM_CORE__
-#define JIM_OPTIMIZATION /* comment to avoid optimizations and reduce size */
-
-#ifdef __ECOS
-#include <pkgconf/jimtcl.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-typedef CYG_ADDRWORD intptr_t;
-
-#include <string.h>
-#include <stdarg.h>
-#include <ctype.h>
-#include <limits.h>
-#include <assert.h>
-#include <errno.h>
-#include <time.h>
-#endif
-#ifndef JIM_ANSIC
-#define JIM_DYNLIB /* Dynamic library support for UNIX and WIN32 */
-#endif /* JIM_ANSIC */
-
-#include <stdarg.h>
-#include <limits.h>
-
-/* Include the platform dependent libraries for
- * dynamic loading of libraries. */
-#ifdef JIM_DYNLIB
-#if defined(_WIN32) || defined(WIN32)
-#ifndef WIN32
-#define WIN32 1
-#endif
-#ifndef STRICT
-#define STRICT
-#endif
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#if _MSC_VER >= 1000
-#pragma warning(disable:4146)
-#endif /* _MSC_VER */
-#else
-#include <dlfcn.h>
-#endif /* WIN32 */
-#endif /* JIM_DYNLIB */
-
-#ifdef __ECOS
-#include <cyg/jimtcl/jim.h>
-#else
-#include "jim.h"
-#endif
-
-#ifdef HAVE_BACKTRACE
-#include <execinfo.h>
-#endif
-
-/* -----------------------------------------------------------------------------
- * Global variables
- * ---------------------------------------------------------------------------*/
-
-/* A shared empty string for the objects string representation.
- * Jim_InvalidateStringRep knows about it and don't try to free. */
-static char *JimEmptyStringRep = (char*) "";
-
-/* -----------------------------------------------------------------------------
- * Required prototypes of not exported functions
- * ---------------------------------------------------------------------------*/
-static void JimChangeCallFrameId(Jim_Interp *interp, Jim_CallFrame *cf);
-static void JimFreeCallFrame(Jim_Interp *interp, Jim_CallFrame *cf, int flags);
-static void JimRegisterCoreApi(Jim_Interp *interp);
-
-static Jim_HashTableType *getJimVariablesHashTableType(void);
-
-/* -----------------------------------------------------------------------------
- * Utility functions
- * ---------------------------------------------------------------------------*/
-
-static char *
-jim_vasprintf(const char *fmt, va_list ap)
-{
-#ifndef HAVE_VASPRINTF
- /* yucky way */
-static char buf[2048];
- vsnprintf(buf, sizeof(buf), fmt, ap);
- /* garentee termination */
- buf[sizeof(buf)-1] = 0;
-#else
- char *buf;
- int result;
- result = vasprintf(&buf, fmt, ap);
- if (result < 0) exit(-1);
-#endif
- return buf;
-}
-
-static void
-jim_vasprintf_done(void *buf)
-{
-#ifndef HAVE_VASPRINTF
- (void)(buf);
-#else
- free(buf);
-#endif
-}
-
-
-/*
- * Convert a string to a jim_wide INTEGER.
- * This function originates from BSD.
- *
- * Ignores `locale' stuff. Assumes that the upper and lower case
- * alphabets and digits are each contiguous.
- */
-#ifdef HAVE_LONG_LONG_INT
-#define JimIsAscii(c) (((c) & ~0x7f) == 0)
-static jim_wide JimStrtoll(const char *nptr, char **endptr, register int base)
-{
- register const char *s;
- register unsigned jim_wide acc;
- register unsigned char c;
- register unsigned jim_wide qbase, cutoff;
- register int neg, any, cutlim;
-
- /*
- * Skip white space and pick up leading +/- sign if any.
- * If base is 0, allow 0x for hex and 0 for octal, else
- * assume decimal; if base is already 16, allow 0x.
- */
- s = nptr;
- do {
- c = *s++;
- } while (isspace(c));
- if (c == '-') {
- neg = 1;
- c = *s++;
- } else {
- neg = 0;
- if (c == '+')
- c = *s++;
- }
- if ((base == 0 || base == 16) &&
- c == '0' && (*s == 'x' || *s == 'X')) {
- c = s[1];
- s += 2;
- base = 16;
- }
- if (base == 0)
- base = c == '0' ? 8 : 10;
-
- /*
- * Compute the cutoff value between legal numbers and illegal
- * numbers. That is the largest legal value, divided by the
- * base. An input number that is greater than this value, if
- * followed by a legal input character, is too big. One that
- * is equal to this value may be valid or not; the limit
- * between valid and invalid numbers is then based on the last
- * digit. For instance, if the range for quads is
- * [-9223372036854775808..9223372036854775807] and the input base
- * is 10, cutoff will be set to 922337203685477580 and cutlim to
- * either 7 (neg == 0) or 8 (neg == 1), meaning that if we have
- * accumulated a value > 922337203685477580, or equal but the
- * next digit is > 7 (or 8), the number is too big, and we will
- * return a range error.
- *
- * Set any if any `digits' consumed; make it negative to indicate
- * overflow.
- */
- qbase = (unsigned)base;
- cutoff = neg ? (unsigned jim_wide)-(LLONG_MIN + LLONG_MAX) + LLONG_MAX
- : LLONG_MAX;
- cutlim = (int)(cutoff % qbase);
- cutoff /= qbase;
- for (acc = 0, any = 0;; c = *s++) {
- if (!JimIsAscii(c))
- break;
- if (isdigit(c))
- c -= '0';
- else if (isalpha(c))
- c -= isupper(c) ? 'A' - 10 : 'a' - 10;
- else
- break;
- if (c >= base)
- break;
- if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
- any = -1;
- else {
- any = 1;
- acc *= qbase;
- acc += c;
- }
- }
- if (any < 0) {
- acc = neg ? LLONG_MIN : LLONG_MAX;
- errno = ERANGE;
- } else if (neg)
- acc = -acc;
- if (endptr != 0)
- *endptr = (char *)(any ? s - 1 : nptr);
- return (acc);
-}
-#endif
-
-/* Glob-style pattern matching. */
-static int JimStringMatch(const char *pattern, int patternLen,
- const char *string, int stringLen, int nocase)
-{
- while (patternLen) {
- switch (pattern[0]) {
- case '*':
- while (pattern[1] == '*') {
- pattern++;
- patternLen--;
- }
- if (patternLen == 1)
- return 1; /* match */
- while (stringLen) {
- if (JimStringMatch(pattern + 1, patternLen-1,
- string, stringLen, nocase))
- return 1; /* match */
- string++;
- stringLen--;
- }
- return 0; /* no match */
- break;
- case '?':
- if (stringLen == 0)
- return 0; /* no match */
- string++;
- stringLen--;
- break;
- case '[':
- {
- int not, match;
-
- pattern++;
- patternLen--;
- not = pattern[0] == '^';
- if (not) {
- pattern++;
- patternLen--;
- }
- match = 0;
- while (1) {
- if (pattern[0] == '\\') {
- pattern++;
- patternLen--;
- if (pattern[0] == string[0])
- match = 1;
- } else if (pattern[0] == ']') {
- break;
- } else if (patternLen == 0) {
- pattern--;
- patternLen++;
- break;
- } else if (pattern[1] == '-' && patternLen >= 3) {
- int start = pattern[0];
- int end = pattern[2];
- int c = string[0];
- if (start > end) {
- int t = start;
- start = end;
- end = t;
- }
- if (nocase) {
- start = tolower(start);
- end = tolower(end);
- c = tolower(c);
- }
- pattern += 2;
- patternLen -= 2;
- if (c >= start && c <= end)
- match = 1;
- } else {
- if (!nocase) {
- if (pattern[0] == string[0])
- match = 1;
- } else {
- if (tolower((int)pattern[0]) == tolower((int)string[0]))
- match = 1;
- }
- }
- pattern++;
- patternLen--;
- }
- if (not)
- match = !match;
- if (!match)
- return 0; /* no match */
- string++;
- stringLen--;
- break;
- }
- case '\\':
- if (patternLen >= 2) {
- pattern++;
- patternLen--;
- }
- /* fall through */
- default:
- if (!nocase) {
- if (pattern[0] != string[0])
- return 0; /* no match */
- } else {
- if (tolower((int)pattern[0]) != tolower((int)string[0]))
- return 0; /* no match */
- }
- string++;
- stringLen--;
- break;
- }
- pattern++;
- patternLen--;
- if (stringLen == 0) {
- while (*pattern == '*') {
- pattern++;
- patternLen--;
- }
- break;
- }
- }
- if (patternLen == 0 && stringLen == 0)
- return 1;
- return 0;
-}
-
-int JimStringCompare(const char *s1, int l1, const char *s2, int l2,
- int nocase)
-{
- unsigned char *u1 = (unsigned char*) s1, *u2 = (unsigned char*) s2;
-
- if (nocase == 0) {
- while (l1 && l2) {
- if (*u1 != *u2)
- return (int)*u1-*u2;
- u1++; u2++; l1--; l2--;
- }
- if (!l1 && !l2) return 0;
- return l1-l2;
- } else {
- while (l1 && l2) {
- if (tolower((int)*u1) != tolower((int)*u2))
- return tolower((int)*u1)-tolower((int)*u2);
- u1++; u2++; l1--; l2--;
- }
- if (!l1 && !l2) return 0;
- return l1-l2;
- }
-}
-
-/* Search 's1' inside 's2', starting to search from char 'index' of 's2'.
- * The index of the first occurrence of s1 in s2 is returned.
- * If s1 is not found inside s2, -1 is returned. */
-int JimStringFirst(const char *s1, int l1, const char *s2, int l2, int index_t)
-{
- int i;
-
- if (!l1 || !l2 || l1 > l2) return -1;
- if (index_t < 0) index_t = 0;
- s2 += index_t;
- for (i = index_t; i <= l2-l1; i++) {
- if (memcmp(s2, s1, l1) == 0)
- return i;
- s2++;
- }
- return -1;
-}
-
-int Jim_WideToString(char *buf, jim_wide wideValue)
-{
- const char *fmt = "%" JIM_WIDE_MODIFIER;
- return sprintf(buf, fmt, wideValue);
-}
-
-int Jim_StringToWide(const char *str, jim_wide *widePtr, int base)
-{
- char *endptr;
-
-#ifdef HAVE_LONG_LONG_INT
- *widePtr = JimStrtoll(str, &endptr, base);
-#else
- *widePtr = strtol(str, &endptr, base);
-#endif
- if ((str[0] == '\0') || (str == endptr))
- return JIM_ERR;
- if (endptr[0] != '\0') {
- while (*endptr) {
- if (!isspace((int)*endptr))
- return JIM_ERR;
- endptr++;
- }
- }
- return JIM_OK;
-}
-
-int Jim_StringToIndex(const char *str, int *intPtr)
-{
- char *endptr;
-
- *intPtr = strtol(str, &endptr, 10);
- if ((str[0] == '\0') || (str == endptr))
- return JIM_ERR;
- if (endptr[0] != '\0') {
- while (*endptr) {
- if (!isspace((int)*endptr))
- return JIM_ERR;
- endptr++;
- }
- }
- return JIM_OK;
-}
-
-/* The string representation of references has two features in order
- * to make the GC faster. The first is that every reference starts
- * with a non common character '~', in order to make the string matching
- * fater. The second is that the reference string rep his 32 characters
- * in length, this allows to avoid to check every object with a string
- * repr < 32, and usually there are many of this objects. */
-
-#define JIM_REFERENCE_SPACE (35 + JIM_REFERENCE_TAGLEN)
-
-static int JimFormatReference(char *buf, Jim_Reference *refPtr, jim_wide id)
-{
- const char *fmt = "<reference.<%s>.%020" JIM_WIDE_MODIFIER ">";
- sprintf(buf, fmt, refPtr->tag, id);
- return JIM_REFERENCE_SPACE;
-}
-
-int Jim_DoubleToString(char *buf, double doubleValue)
-{
- char *s;
- int len;
-
- len = sprintf(buf, "%.17g", doubleValue);
- s = buf;
- while (*s) {
- if (*s == '.') return len;
- s++;
- }
- /* Add a final ".0" if it's a number. But not
- * for NaN or InF */
- if (isdigit((int)buf[0])
- || ((buf[0] == '-' || buf[0] == '+')
- && isdigit((int)buf[1]))) {
- s[0] = '.';
- s[1] = '0';
- s[2] = '\0';
- return len + 2;
- }
- return len;
-}
-
-int Jim_StringToDouble(const char *str, double *doublePtr)
-{
- char *endptr;
-
- *doublePtr = strtod(str, &endptr);
- if (str[0] == '\0' || endptr[0] != '\0' || (str == endptr))
- return JIM_ERR;
- return JIM_OK;
-}
-
-static jim_wide JimPowWide(jim_wide b, jim_wide e)
-{
- jim_wide i, res = 1;
- if ((b == 0 && e != 0) || (e < 0)) return 0;
- for (i = 0; i < e; i++) {res *= b;}
- return res;
-}
-
-/* -----------------------------------------------------------------------------
- * Special functions
- * ---------------------------------------------------------------------------*/
-
-/* Note that 'interp' may be NULL if not available in the
- * context of the panic. It's only useful to get the error
- * file descriptor, it will default to stderr otherwise. */
-void Jim_Panic(Jim_Interp *interp, const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- /*
- * Send it here first.. Assuming STDIO still works
- */
- fprintf(stderr, JIM_NL "JIM INTERPRETER PANIC: ");
- vfprintf(stderr, fmt, ap);
- fprintf(stderr, JIM_NL JIM_NL);
- va_end(ap);
-
-#ifdef HAVE_BACKTRACE
- {
- void *array[40];
- int size, i;
- char **strings;
-
- size = backtrace(array, 40);
- strings = backtrace_symbols(array, size);
- for (i = 0; i < size; i++)
- fprintf(fp,"[backtrace] %s" JIM_NL, strings[i]);
- fprintf(fp,"[backtrace] Include the above lines and the output" JIM_NL);
- fprintf(fp,"[backtrace] of 'nm <executable>' in the bug report." JIM_NL);
- }
-#endif
-
- /* This may actually crash... we do it last */
- if (interp && interp->cookie_stderr) {
- Jim_fprintf(interp, interp->cookie_stderr, JIM_NL "JIM INTERPRETER PANIC: ");
- Jim_vfprintf(interp, interp->cookie_stderr, fmt, ap);
- Jim_fprintf(interp, interp->cookie_stderr, JIM_NL JIM_NL);
- }
- abort();
-}
-
-/* -----------------------------------------------------------------------------
- * Memory allocation
- * ---------------------------------------------------------------------------*/
-
-/* Macro used for memory debugging.
- * In order for they to work you have to rename Jim_Alloc into _Jim_Alloc
- * and similary for Jim_Realloc and Jim_Free */
-#if 0
-#define Jim_Alloc(s) (printf("%s %d: Jim_Alloc(%d)\n",__FILE__,__LINE__,s),_Jim_Alloc(s))
-#define Jim_Free(p) (printf("%s %d: Jim_Free(%p)\n",__FILE__,__LINE__,p),_Jim_Free(p))
-#define Jim_Realloc(p,s) (printf("%s %d: Jim_Realloc(%p,%d)\n",__FILE__,__LINE__,p,s),_Jim_Realloc(p,s))
-#endif
-
-void *Jim_Alloc(int size)
-{
- /* We allocate zero length arrayes, etc. to use a single orthogonal codepath */
- if (size == 0)
- size = 1;
- void *p = malloc(size);
- if (p == NULL)
- Jim_Panic(NULL,"malloc: Out of memory");
- return p;
-}
-
-void Jim_Free(void *ptr) {
- free(ptr);
-}
-
-void *Jim_Realloc(void *ptr, int size)
-{
- /* We allocate zero length arrayes, etc. to use a single orthogonal codepath */
- if (size == 0)
- size = 1;
- void *p = realloc(ptr, size);
- if (p == NULL)
- Jim_Panic(NULL,"realloc: Out of memory");
- return p;
-}
-
-char *Jim_StrDup(const char *s)
-{
- int l = strlen(s);
- char *copy = Jim_Alloc(l + 1);
-
- memcpy(copy, s, l + 1);
- return copy;
-}
-
-char *Jim_StrDupLen(const char *s, int l)
-{
- char *copy = Jim_Alloc(l + 1);
-
- memcpy(copy, s, l + 1);
- copy[l] = 0; /* Just to be sure, original could be substring */
- return copy;
-}
-
-/* -----------------------------------------------------------------------------
- * Time related functions
- * ---------------------------------------------------------------------------*/
-/* Returns microseconds of CPU used since start. */
-static jim_wide JimClock(void)
-{
-#if (defined WIN32) && !(defined JIM_ANSIC)
- LARGE_INTEGER t, f;
- QueryPerformanceFrequency(&f);
- QueryPerformanceCounter(&t);
- return (long)((t.QuadPart * 1000000) / f.QuadPart);
-#else /* !WIN32 */
- clock_t clocks = clock();
-
- return (long)(clocks*(1000000/CLOCKS_PER_SEC));
-#endif /* WIN32 */
-}
-
-/* -----------------------------------------------------------------------------
- * Hash Tables
- * ---------------------------------------------------------------------------*/
-
-/* -------------------------- private prototypes ---------------------------- */
-static int JimExpandHashTableIfNeeded(Jim_HashTable *ht);
-static unsigned int JimHashTableNextPower(unsigned int size);
-static int JimInsertHashEntry(Jim_HashTable *ht, const void *key);
-
-/* -------------------------- hash functions -------------------------------- */
-
-/* Thomas Wang's 32 bit Mix Function */
-unsigned int Jim_IntHashFunction(unsigned int key)
-{
- key += ~(key << 15);
- key ^= (key >> 10);
- key += (key << 3);
- key ^= (key >> 6);
- key += ~(key << 11);
- key ^= (key >> 16);
- return key;
-}
-
-/* Identity hash function for integer keys */
-unsigned int Jim_IdentityHashFunction(unsigned int key)
-{
- return key;
-}
-
-/* Generic hash function (we are using to multiply by 9 and add the byte
- * as Tcl) */
-unsigned int Jim_GenHashFunction(const unsigned char *buf, int len)
-{
- unsigned int h = 0;
- while (len--)
- h += (h << 3)+*buf++;
- return h;
-}
-
-/* ----------------------------- API implementation ------------------------- */
-/* reset an hashtable already initialized with ht_init().
- * NOTE: This function should only called by ht_destroy(). */
-static void JimResetHashTable(Jim_HashTable *ht)
-{
- ht->table = NULL;
- ht->size = 0;
- ht->sizemask = 0;
- ht->used = 0;
- ht->collisions = 0;
-}
-
-/* Initialize the hash table */
-int Jim_InitHashTable(Jim_HashTable *ht, Jim_HashTableType *type,
- void *privDataPtr)
-{
- JimResetHashTable(ht);
- ht->type = type;
- ht->privdata = privDataPtr;
- return JIM_OK;
-}
-
-/* Resize the table to the minimal size that contains all the elements,
- * but with the invariant of a USER/BUCKETS ration near to <= 1 */
-int Jim_ResizeHashTable(Jim_HashTable *ht)
-{
- int minimal = ht->used;
-
- if (minimal < JIM_HT_INITIAL_SIZE)
- minimal = JIM_HT_INITIAL_SIZE;
- return Jim_ExpandHashTable(ht, minimal);
-}
-
-/* Expand or create the hashtable */
-int Jim_ExpandHashTable(Jim_HashTable *ht, unsigned int size)
-{
- Jim_HashTable n; /* the new hashtable */
- unsigned int realsize = JimHashTableNextPower(size), i;
-
- /* the size is invalid if it is smaller than the number of
- * elements already inside the hashtable */
- if (ht->used >= size)
- return JIM_ERR;
-
- Jim_InitHashTable(&n, ht->type, ht->privdata);
- n.size = realsize;
- n.sizemask = realsize-1;
- n.table = Jim_Alloc(realsize*sizeof(Jim_HashEntry*));
-
- /* Initialize all the pointers to NULL */
- memset(n.table, 0, realsize*sizeof(Jim_HashEntry*));
-
- /* Copy all the elements from the old to the new table:
- * note that if the old hash table is empty ht->size is zero,
- * so Jim_ExpandHashTable just creates an hash table. */
- n.used = ht->used;
- for (i = 0; i < ht->size && ht->used > 0; i++) {
- Jim_HashEntry *he, *nextHe;
-
- if (ht->table[i] == NULL) continue;
-
- /* For each hash entry on this slot... */
- he = ht->table[i];
- while (he) {
- unsigned int h;
-
- nextHe = he->next;
- /* Get the new element index */
- h = Jim_HashKey(ht, he->key) & n.sizemask;
- he->next = n.table[h];
- n.table[h] = he;
- ht->used--;
- /* Pass to the next element */
- he = nextHe;
- }
- }
- assert(ht->used == 0);
- Jim_Free(ht->table);
-
- /* Remap the new hashtable in the old */
- *ht = n;
- return JIM_OK;
-}
-
-/* Add an element to the target hash table */
-int Jim_AddHashEntry(Jim_HashTable *ht, const void *key, void *val)
-{
- int index_t;
- Jim_HashEntry *entry;
-
- /* Get the index of the new element, or -1 if
- * the element already exists. */
- if ((index_t = JimInsertHashEntry(ht, key)) == -1)
- return JIM_ERR;
-
- /* Allocates the memory and stores key */
- entry = Jim_Alloc(sizeof(*entry));
- entry->next = ht->table[index_t];
- ht->table[index_t] = entry;
-
- /* Set the hash entry fields. */
- Jim_SetHashKey(ht, entry, key);
- Jim_SetHashVal(ht, entry, val);
- ht->used++;
- return JIM_OK;
-}
-
-/* Add an element, discarding the old if the key already exists */
-int Jim_ReplaceHashEntry(Jim_HashTable *ht, const void *key, void *val)
-{
- Jim_HashEntry *entry;
-
- /* Try to add the element. If the key
- * does not exists Jim_AddHashEntry will suceed. */
- if (Jim_AddHashEntry(ht, key, val) == JIM_OK)
- return JIM_OK;
- /* It already exists, get the entry */
- entry = Jim_FindHashEntry(ht, key);
- /* Free the old value and set the new one */
- Jim_FreeEntryVal(ht, entry);
- Jim_SetHashVal(ht, entry, val);
- return JIM_OK;
-}
-
-/* Search and remove an element */
-int Jim_DeleteHashEntry(Jim_HashTable *ht, const void *key)
-{
- unsigned int h;
- Jim_HashEntry *he, *prevHe;
-
- if (ht->size == 0)
- return JIM_ERR;
- h = Jim_HashKey(ht, key) & ht->sizemask;
- he = ht->table[h];
-
- prevHe = NULL;
- while (he) {
- if (Jim_CompareHashKeys(ht, key, he->key)) {
- /* Unlink the element from the list */
- if (prevHe)
- prevHe->next = he->next;
- else
- ht->table[h] = he->next;
- Jim_FreeEntryKey(ht, he);
- Jim_FreeEntryVal(ht, he);
- Jim_Free(he);
- ht->used--;
- return JIM_OK;
- }
- prevHe = he;
- he = he->next;
- }
- return JIM_ERR; /* not found */
-}
-
-/* Destroy an entire hash table */
-int Jim_FreeHashTable(Jim_HashTable *ht)
-{
- unsigned int i;
-
- /* Free all the elements */
- for (i = 0; i < ht->size && ht->used > 0; i++) {
- Jim_HashEntry *he, *nextHe;
-
- if ((he = ht->table[i]) == NULL) continue;
- while (he) {
- nextHe = he->next;
- Jim_FreeEntryKey(ht, he);
- Jim_FreeEntryVal(ht, he);
- Jim_Free(he);
- ht->used--;
- he = nextHe;
- }
- }
- /* Free the table and the allocated cache structure */
- Jim_Free(ht->table);
- /* Re-initialize the table */
- JimResetHashTable(ht);
- return JIM_OK; /* never fails */
-}
-
-Jim_HashEntry *Jim_FindHashEntry(Jim_HashTable *ht, const void *key)
-{
- Jim_HashEntry *he;
- unsigned int h;
-
- if (ht->size == 0) return NULL;
- h = Jim_HashKey(ht, key) & ht->sizemask;
- he = ht->table[h];
- while (he) {
- if (Jim_CompareHashKeys(ht, key, he->key))
- return he;
- he = he->next;
- }
- return NULL;
-}
-
-Jim_HashTableIterator *Jim_GetHashTableIterator(Jim_HashTable *ht)
-{
- Jim_HashTableIterator *iter = Jim_Alloc(sizeof(*iter));
-
- iter->ht = ht;
- iter->index = -1;
- iter->entry = NULL;
- iter->nextEntry = NULL;
- return iter;
-}
-
-Jim_HashEntry *Jim_NextHashEntry(Jim_HashTableIterator *iter)
-{
- while (1) {
- if (iter->entry == NULL) {
- iter->index++;
- if (iter->index >=
- (signed)iter->ht->size) break;
- iter->entry = iter->ht->table[iter->index];
- } else {
- iter->entry = iter->nextEntry;
- }
- if (iter->entry) {
- /* We need to save the 'next' here, the iterator user
- * may delete the entry we are returning. */
- iter->nextEntry = iter->entry->next;
- return iter->entry;
- }
- }
- return NULL;
-}
-
-/* ------------------------- private functions ------------------------------ */
-
-/* Expand the hash table if needed */
-static int JimExpandHashTableIfNeeded(Jim_HashTable *ht)
-{
- /* If the hash table is empty expand it to the intial size,
- * if the table is "full" dobule its size. */
- if (ht->size == 0)
- return Jim_ExpandHashTable(ht, JIM_HT_INITIAL_SIZE);
- if (ht->size == ht->used)
- return Jim_ExpandHashTable(ht, ht->size*2);
- return JIM_OK;
-}
-
-/* Our hash table capability is a power of two */
-static unsigned int JimHashTableNextPower(unsigned int size)
-{
- unsigned int i = JIM_HT_INITIAL_SIZE;
-
- if (size >= 2147483648U)
- return 2147483648U;
- while (1) {
- if (i >= size)
- return i;
- i *= 2;
- }
-}
-
-/* Returns the index of a free slot that can be populated with
- * an hash entry for the given 'key'.
- * If the key already exists, -1 is returned. */
-static int JimInsertHashEntry(Jim_HashTable *ht, const void *key)
-{
- unsigned int h;
- Jim_HashEntry *he;
-
- /* Expand the hashtable if needed */
- if (JimExpandHashTableIfNeeded(ht) == JIM_ERR)
- return -1;
- /* Compute the key hash value */
- h = Jim_HashKey(ht, key) & ht->sizemask;
- /* Search if this slot does not already contain the given key */
- he = ht->table[h];
- while (he) {
- if (Jim_CompareHashKeys(ht, key, he->key))
- return -1;
- he = he->next;
- }
- return h;
-}
-
-/* ----------------------- StringCopy Hash Table Type ------------------------*/
-
-static unsigned int JimStringCopyHTHashFunction(const void *key)
-{
- return Jim_GenHashFunction(key, strlen(key));
-}
-
-static const void *JimStringCopyHTKeyDup(void *privdata, const void *key)
-{
- int len = strlen(key);
- char *copy = Jim_Alloc(len + 1);
- JIM_NOTUSED(privdata);
-
- memcpy(copy, key, len);
- copy[len] = '\0';
- return copy;
-}
-
-static void *JimStringKeyValCopyHTValDup(void *privdata, const void *val)
-{
- int len = strlen(val);
- char *copy = Jim_Alloc(len + 1);
- JIM_NOTUSED(privdata);
-
- memcpy(copy, val, len);
- copy[len] = '\0';
- return copy;
-}
-
-static int JimStringCopyHTKeyCompare(void *privdata, const void *key1,
- const void *key2)
-{
- JIM_NOTUSED(privdata);
-
- return strcmp(key1, key2) == 0;
-}
-
-static void JimStringCopyHTKeyDestructor(void *privdata, const void *key)
-{
- JIM_NOTUSED(privdata);
-
- Jim_Free((void*)key); /* ATTENTION: const cast */
-}
-
-static void JimStringKeyValCopyHTValDestructor(void *privdata, void *val)
-{
- JIM_NOTUSED(privdata);
-
- Jim_Free((void*)val); /* ATTENTION: const cast */
-}
-
-static Jim_HashTableType JimStringCopyHashTableType = {
- JimStringCopyHTHashFunction, /* hash function */
- JimStringCopyHTKeyDup, /* key dup */
- NULL, /* val dup */
- JimStringCopyHTKeyCompare, /* key compare */
- JimStringCopyHTKeyDestructor, /* key destructor */
- NULL /* val destructor */
-};
-
-/* This is like StringCopy but does not auto-duplicate the key.
- * It's used for intepreter's shared strings. */
-static Jim_HashTableType JimSharedStringsHashTableType = {
- JimStringCopyHTHashFunction, /* hash function */
- NULL, /* key dup */
- NULL, /* val dup */
- JimStringCopyHTKeyCompare, /* key compare */
- JimStringCopyHTKeyDestructor, /* key destructor */
- NULL /* val destructor */
-};
-
-/* This is like StringCopy but also automatically handle dynamic
- * allocated C strings as values. */
-static Jim_HashTableType JimStringKeyValCopyHashTableType = {
- JimStringCopyHTHashFunction, /* hash function */
- JimStringCopyHTKeyDup, /* key dup */
- JimStringKeyValCopyHTValDup, /* val dup */
- JimStringCopyHTKeyCompare, /* key compare */
- JimStringCopyHTKeyDestructor, /* key destructor */
- JimStringKeyValCopyHTValDestructor, /* val destructor */
-};
-
-typedef struct AssocDataValue {
- Jim_InterpDeleteProc *delProc;
- void *data;
-} AssocDataValue;
-
-static void JimAssocDataHashTableValueDestructor(void *privdata, void *data)
-{
- AssocDataValue *assocPtr = (AssocDataValue *)data;
- if (assocPtr->delProc != NULL)
- assocPtr->delProc((Jim_Interp *)privdata, assocPtr->data);
- Jim_Free(data);
-}
-
-static Jim_HashTableType JimAssocDataHashTableType = {
- JimStringCopyHTHashFunction, /* hash function */
- JimStringCopyHTKeyDup, /* key dup */
- NULL, /* val dup */
- JimStringCopyHTKeyCompare, /* key compare */
- JimStringCopyHTKeyDestructor, /* key destructor */
- JimAssocDataHashTableValueDestructor /* val destructor */
-};
-
-/* -----------------------------------------------------------------------------
- * Stack - This is a simple generic stack implementation. It is used for
- * example in the 'expr' expression compiler.
- * ---------------------------------------------------------------------------*/
-void Jim_InitStack(Jim_Stack *stack)
-{
- stack->len = 0;
- stack->maxlen = 0;
- stack->vector = NULL;
-}
-
-void Jim_FreeStack(Jim_Stack *stack)
-{
- Jim_Free(stack->vector);
-}
-
-int Jim_StackLen(Jim_Stack *stack)
-{
- return stack->len;
-}
-
-void Jim_StackPush(Jim_Stack *stack, void *element) {
- int neededLen = stack->len + 1;
- if (neededLen > stack->maxlen) {
- stack->maxlen = neededLen*2;
- stack->vector = Jim_Realloc(stack->vector, sizeof(void*)*stack->maxlen);
- }
- stack->vector[stack->len] = element;
- stack->len++;
-}
-
-void *Jim_StackPop(Jim_Stack *stack)
-{
- if (stack->len == 0) return NULL;
- stack->len--;
- return stack->vector[stack->len];
-}
-
-void *Jim_StackPeek(Jim_Stack *stack)
-{
- if (stack->len == 0) return NULL;
- return stack->vector[stack->len-1];
-}
-
-void Jim_FreeStackElements(Jim_Stack *stack, void (*freeFunc)(void *ptr))
-{
- int i;
-
- for (i = 0; i < stack->len; i++)
- freeFunc(stack->vector[i]);
-}
-
-/* -----------------------------------------------------------------------------
- * Parser
- * ---------------------------------------------------------------------------*/
-
-/* Token types */
-#define JIM_TT_NONE -1 /* No token returned */
-#define JIM_TT_STR 0 /* simple string */
-#define JIM_TT_ESC 1 /* string that needs escape chars conversion */
-#define JIM_TT_VAR 2 /* var substitution */
-#define JIM_TT_DICTSUGAR 3 /* Syntax sugar for [dict get], $foo(bar) */
-#define JIM_TT_CMD 4 /* command substitution */
-#define JIM_TT_SEP 5 /* word separator */
-#define JIM_TT_EOL 6 /* line separator */
-
-/* Additional token types needed for expressions */
-#define JIM_TT_SUBEXPR_START 7
-#define JIM_TT_SUBEXPR_END 8
-#define JIM_TT_EXPR_NUMBER 9
-#define JIM_TT_EXPR_OPERATOR 10
-
-/* Parser states */
-#define JIM_PS_DEF 0 /* Default state */
-#define JIM_PS_QUOTE 1 /* Inside "" */
-
-/* Parser context structure. The same context is used both to parse
- * Tcl scripts and lists. */
-struct JimParserCtx {
- const char *prg; /* Program text */
- const char *p; /* Pointer to the point of the program we are parsing */
- int len; /* Left length of 'prg' */
- int linenr; /* Current line number */
- const char *tstart;
- const char *tend; /* Returned token is at tstart-tend in 'prg'. */
- int tline; /* Line number of the returned token */
- int tt; /* Token type */
- int eof; /* Non zero if EOF condition is true. */
- int state; /* Parser state */
- int comment; /* Non zero if the next chars may be a comment. */
-};
-
-#define JimParserEof(c) ((c)->eof)
-#define JimParserTstart(c) ((c)->tstart)
-#define JimParserTend(c) ((c)->tend)
-#define JimParserTtype(c) ((c)->tt)
-#define JimParserTline(c) ((c)->tline)
-
-static int JimParseScript(struct JimParserCtx *pc);
-static int JimParseSep(struct JimParserCtx *pc);
-static int JimParseEol(struct JimParserCtx *pc);
-static int JimParseCmd(struct JimParserCtx *pc);
-static int JimParseVar(struct JimParserCtx *pc);
-static int JimParseBrace(struct JimParserCtx *pc);
-static int JimParseStr(struct JimParserCtx *pc);
-static int JimParseComment(struct JimParserCtx *pc);
-static char *JimParserGetToken(struct JimParserCtx *pc,
- int *lenPtr, int *typePtr, int *linePtr);
-
-/* Initialize a parser context.
- * 'prg' is a pointer to the program text, linenr is the line
- * number of the first line contained in the program. */
-void JimParserInit(struct JimParserCtx *pc, const char *prg,
- int len, int linenr)
-{
- pc->prg = prg;
- pc->p = prg;
- pc->len = len;
- pc->tstart = NULL;
- pc->tend = NULL;
- pc->tline = 0;
- pc->tt = JIM_TT_NONE;
- pc->eof = 0;
- pc->state = JIM_PS_DEF;
- pc->linenr = linenr;
- pc->comment = 1;
-}
-
-int JimParseScript(struct JimParserCtx *pc)
-{
- while (1) { /* the while is used to reiterate with continue if needed */
- if (!pc->len) {
- pc->tstart = pc->p;
- pc->tend = pc->p-1;
- pc->tline = pc->linenr;
- pc->tt = JIM_TT_EOL;
- pc->eof = 1;
- return JIM_OK;
- }
- switch (*(pc->p)) {
- case '\\':
- if (*(pc->p + 1) == '\n')
- return JimParseSep(pc);
- else {
- pc->comment = 0;
- return JimParseStr(pc);
- }
- break;
- case ' ':
- case '\t':
- case '\r':
- if (pc->state == JIM_PS_DEF)
- return JimParseSep(pc);
- else {
- pc->comment = 0;
- return JimParseStr(pc);
- }
- break;
- case '\n':
- case ';':
- pc->comment = 1;
- if (pc->state == JIM_PS_DEF)
- return JimParseEol(pc);
- else
- return JimParseStr(pc);
- break;
- case '[':
- pc->comment = 0;
- return JimParseCmd(pc);
- break;
- case '$':
- pc->comment = 0;
- if (JimParseVar(pc) == JIM_ERR) {
- pc->tstart = pc->tend = pc->p++; pc->len--;
- pc->tline = pc->linenr;
- pc->tt = JIM_TT_STR;
- return JIM_OK;
- } else
- return JIM_OK;
- break;
- case '#':
- if (pc->comment) {
- JimParseComment(pc);
- continue;
- } else {
- return JimParseStr(pc);
- }
- default:
- pc->comment = 0;
- return JimParseStr(pc);
- break;
- }
- return JIM_OK;
- }
-}
-
-int JimParseSep(struct JimParserCtx *pc)
-{
- pc->tstart = pc->p;
- pc->tline = pc->linenr;
- while (*pc->p == ' ' || *pc->p == '\t' || *pc->p == '\r' ||
- (*pc->p == '\\' && *(pc->p + 1) == '\n')) {
- if (*pc->p == '\\') {
- pc->p++; pc->len--;
- pc->linenr++;
- }
- pc->p++; pc->len--;
- }
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_SEP;
- return JIM_OK;
-}
-
-int JimParseEol(struct JimParserCtx *pc)
-{
- pc->tstart = pc->p;
- pc->tline = pc->linenr;
- while (*pc->p == ' ' || *pc->p == '\n' ||
- *pc->p == '\t' || *pc->p == '\r' || *pc->p == ';') {
- if (*pc->p == '\n')
- pc->linenr++;
- pc->p++; pc->len--;
- }
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_EOL;
- return JIM_OK;
-}
-
-/* Todo. Don't stop if ']' appears inside {} or quoted.
- * Also should handle the case of puts [string length "]"] */
-int JimParseCmd(struct JimParserCtx *pc)
-{
- int level = 1;
- int blevel = 0;
-
- pc->tstart = ++pc->p; pc->len--;
- pc->tline = pc->linenr;
- while (1) {
- if (pc->len == 0) {
- break;
- } else if (*pc->p == '[' && blevel == 0) {
- level++;
- } else if (*pc->p == ']' && blevel == 0) {
- level--;
- if (!level) break;
- } else if (*pc->p == '\\') {
- pc->p++; pc->len--;
- } else if (*pc->p == '{') {
- blevel++;
- } else if (*pc->p == '}') {
- if (blevel != 0)
- blevel--;
- } else if (*pc->p == '\n')
- pc->linenr++;
- pc->p++; pc->len--;
- }
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_CMD;
- if (*pc->p == ']') {
- pc->p++; pc->len--;
- }
- return JIM_OK;
-}
-
-int JimParseVar(struct JimParserCtx *pc)
-{
- int brace = 0, stop = 0, ttype = JIM_TT_VAR;
-
- pc->tstart = ++pc->p; pc->len--; /* skip the $ */
- pc->tline = pc->linenr;
- if (*pc->p == '{') {
- pc->tstart = ++pc->p; pc->len--;
- brace = 1;
- }
- if (brace) {
- while (!stop) {
- if (*pc->p == '}' || pc->len == 0) {
- pc->tend = pc->p-1;
- stop = 1;
- if (pc->len == 0)
- break;
- }
- else if (*pc->p == '\n')
- pc->linenr++;
- pc->p++; pc->len--;
- }
- } else {
- /* Include leading colons */
- while (*pc->p == ':') {
- pc->p++;
- pc->len--;
- }
- while (!stop) {
- if (!((*pc->p >= 'a' && *pc->p <= 'z') ||
- (*pc->p >= 'A' && *pc->p <= 'Z') ||
- (*pc->p >= '0' && *pc->p <= '9') || *pc->p == '_'))
- stop = 1;
- else {
- pc->p++; pc->len--;
- }
- }
- /* Parse [dict get] syntax sugar. */
- if (*pc->p == '(') {
- while (*pc->p != ')' && pc->len) {
- pc->p++; pc->len--;
- if (*pc->p == '\\' && pc->len >= 2) {
- pc->p += 2; pc->len -= 2;
- }
- }
- if (*pc->p != '\0') {
- pc->p++; pc->len--;
- }
- ttype = JIM_TT_DICTSUGAR;
- }
- pc->tend = pc->p-1;
- }
- /* Check if we parsed just the '$' character.
- * That's not a variable so an error is returned
- * to tell the state machine to consider this '$' just
- * a string. */
- if (pc->tstart == pc->p) {
- pc->p--; pc->len++;
- return JIM_ERR;
- }
- pc->tt = ttype;
- return JIM_OK;
-}
-
-int JimParseBrace(struct JimParserCtx *pc)
-{
- int level = 1;
-
- pc->tstart = ++pc->p; pc->len--;
- pc->tline = pc->linenr;
- while (1) {
- if (*pc->p == '\\' && pc->len >= 2) {
- pc->p++; pc->len--;
- if (*pc->p == '\n')
- pc->linenr++;
- } else if (*pc->p == '{') {
- level++;
- } else if (pc->len == 0 || *pc->p == '}') {
- level--;
- if (pc->len == 0 || level == 0) {
- pc->tend = pc->p-1;
- if (pc->len != 0) {
- pc->p++; pc->len--;
- }
- pc->tt = JIM_TT_STR;
- return JIM_OK;
- }
- } else if (*pc->p == '\n') {
- pc->linenr++;
- }
- pc->p++; pc->len--;
- }
- return JIM_OK; /* unreached */
-}
-
-int JimParseStr(struct JimParserCtx *pc)
-{
- int newword = (pc->tt == JIM_TT_SEP || pc->tt == JIM_TT_EOL ||
- pc->tt == JIM_TT_NONE || pc->tt == JIM_TT_STR);
- if (newword && *pc->p == '{') {
- return JimParseBrace(pc);
- } else if (newword && *pc->p == '"') {
- pc->state = JIM_PS_QUOTE;
- pc->p++; pc->len--;
- }
- pc->tstart = pc->p;
- pc->tline = pc->linenr;
- while (1) {
- if (pc->len == 0) {
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_ESC;
- return JIM_OK;
- }
- switch (*pc->p) {
- case '\\':
- if (pc->state == JIM_PS_DEF &&
- *(pc->p + 1) == '\n') {
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_ESC;
- return JIM_OK;
- }
- if (pc->len >= 2) {
- pc->p++; pc->len--;
- }
- break;
- case '$':
- case '[':
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_ESC;
- return JIM_OK;
- case ' ':
- case '\t':
- case '\n':
- case '\r':
- case ';':
- if (pc->state == JIM_PS_DEF) {
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_ESC;
- return JIM_OK;
- } else if (*pc->p == '\n') {
- pc->linenr++;
- }
- break;
- case '"':
- if (pc->state == JIM_PS_QUOTE) {
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_ESC;
- pc->p++; pc->len--;
- pc->state = JIM_PS_DEF;
- return JIM_OK;
- }
- break;
- }
- pc->p++; pc->len--;
- }
- return JIM_OK; /* unreached */
-}
-
-int JimParseComment(struct JimParserCtx *pc)
-{
- while (*pc->p) {
- if (*pc->p == '\n') {
- pc->linenr++;
- if (*(pc->p-1) != '\\') {
- pc->p++; pc->len--;
- return JIM_OK;
- }
- }
- pc->p++; pc->len--;
- }
- return JIM_OK;
-}
-
-/* xdigitval and odigitval are helper functions for JimParserGetToken() */
-static int xdigitval(int c)
-{
- if (c >= '0' && c <= '9') return c-'0';
- if (c >= 'a' && c <= 'f') return c-'a'+10;
- if (c >= 'A' && c <= 'F') return c-'A'+10;
- return -1;
-}
-
-static int odigitval(int c)
-{
- if (c >= '0' && c <= '7') return c-'0';
- return -1;
-}
-
-/* Perform Tcl escape substitution of 's', storing the result
- * string into 'dest'. The escaped string is guaranteed to
- * be the same length or shorted than the source string.
- * Slen is the length of the string at 's', if it's -1 the string
- * length will be calculated by the function.
- *
- * The function returns the length of the resulting string. */
-static int JimEscape(char *dest, const char *s, int slen)
-{
- char *p = dest;
- int i, len;
-
- if (slen == -1)
- slen = strlen(s);
-
- for (i = 0; i < slen; i++) {
- switch (s[i]) {
- case '\\':
- switch (s[i + 1]) {
- case 'a': *p++ = 0x7; i++; break;
- case 'b': *p++ = 0x8; i++; break;
- case 'f': *p++ = 0xc; i++; break;
- case 'n': *p++ = 0xa; i++; break;
- case 'r': *p++ = 0xd; i++; break;
- case 't': *p++ = 0x9; i++; break;
- case 'v': *p++ = 0xb; i++; break;
- case '\0': *p++ = '\\'; i++; break;
- case '\n': *p++ = ' '; i++; break;
- default:
- if (s[i + 1] == 'x') {
- int val = 0;
- int c = xdigitval(s[i + 2]);
- if (c == -1) {
- *p++ = 'x';
- i++;
- break;
- }
- val = c;
- c = xdigitval(s[i + 3]);
- if (c == -1) {
- *p++ = val;
- i += 2;
- break;
- }
- val = (val*16) + c;
- *p++ = val;
- i += 3;
- break;
- } else if (s[i + 1] >= '0' && s[i + 1] <= '7')
- {
- int val = 0;
- int c = odigitval(s[i + 1]);
- val = c;
- c = odigitval(s[i + 2]);
- if (c == -1) {
- *p++ = val;
- i ++;
- break;
- }
- val = (val*8) + c;
- c = odigitval(s[i + 3]);
- if (c == -1) {
- *p++ = val;
- i += 2;
- break;
- }
- val = (val*8) + c;
- *p++ = val;
- i += 3;
- } else {
- *p++ = s[i + 1];
- i++;
- }
- break;
- }
- break;
- default:
- *p++ = s[i];
- break;
- }
- }
- len = p-dest;
- *p++ = '\0';
- return len;
-}
-
-/* Returns a dynamically allocated copy of the current token in the
- * parser context. The function perform conversion of escapes if
- * the token is of type JIM_TT_ESC.
- *
- * Note that after the conversion, tokens that are grouped with
- * braces in the source code, are always recognizable from the
- * identical string obtained in a different way from the type.
- *
- * For exmple the string:
- *
- * {expand}$a
- *
- * will return as first token "expand", of type JIM_TT_STR
- *
- * While the string:
- *
- * expand$a
- *
- * will return as first token "expand", of type JIM_TT_ESC
- */
-char *JimParserGetToken(struct JimParserCtx *pc,
- int *lenPtr, int *typePtr, int *linePtr)
-{
- const char *start, *end;
- char *token;
- int len;
-
- start = JimParserTstart(pc);
- end = JimParserTend(pc);
- if (start > end) {
- if (lenPtr) *lenPtr = 0;
- if (typePtr) *typePtr = JimParserTtype(pc);
- if (linePtr) *linePtr = JimParserTline(pc);
- token = Jim_Alloc(1);
- token[0] = '\0';
- return token;
- }
- len = (end-start) + 1;
- token = Jim_Alloc(len + 1);
- if (JimParserTtype(pc) != JIM_TT_ESC) {
- /* No escape conversion needed? Just copy it. */
- memcpy(token, start, len);
- token[len] = '\0';
- } else {
- /* Else convert the escape chars. */
- len = JimEscape(token, start, len);
- }
- if (lenPtr) *lenPtr = len;
- if (typePtr) *typePtr = JimParserTtype(pc);
- if (linePtr) *linePtr = JimParserTline(pc);
- return token;
-}
-
-/* The following functin is not really part of the parsing engine of Jim,
- * but it somewhat related. Given an string and its length, it tries
- * to guess if the script is complete or there are instead " " or { }
- * open and not completed. This is useful for interactive shells
- * implementation and for [info complete].
- *
- * If 'stateCharPtr' != NULL, the function stores ' ' on complete script,
- * '{' on scripts incomplete missing one or more '}' to be balanced.
- * '"' on scripts incomplete missing a '"' char.
- *
- * If the script is complete, 1 is returned, otherwise 0. */
-int Jim_ScriptIsComplete(const char *s, int len, char *stateCharPtr)
-{
- int level = 0;
- int state = ' ';
-
- while (len) {
- switch (*s) {
- case '\\':
- if (len > 1)
- s++;
- break;
- case '"':
- if (state == ' ') {
- state = '"';
- } else if (state == '"') {
- state = ' ';
- }
- break;
- case '{':
- if (state == '{') {
- level++;
- } else if (state == ' ') {
- state = '{';
- level++;
- }
- break;
- case '}':
- if (state == '{') {
- level--;
- if (level == 0)
- state = ' ';
- }
- break;
- }
- s++;
- len--;
- }
- if (stateCharPtr)
- *stateCharPtr = state;
- return state == ' ';
-}
-
-/* -----------------------------------------------------------------------------
- * Tcl Lists parsing
- * ---------------------------------------------------------------------------*/
-static int JimParseListSep(struct JimParserCtx *pc);
-static int JimParseListStr(struct JimParserCtx *pc);
-
-int JimParseList(struct JimParserCtx *pc)
-{
- if (pc->len == 0) {
- pc->tstart = pc->tend = pc->p;
- pc->tline = pc->linenr;
- pc->tt = JIM_TT_EOL;
- pc->eof = 1;
- return JIM_OK;
- }
- switch (*pc->p) {
- case ' ':
- case '\n':
- case '\t':
- case '\r':
- if (pc->state == JIM_PS_DEF)
- return JimParseListSep(pc);
- else
- return JimParseListStr(pc);
- break;
- default:
- return JimParseListStr(pc);
- break;
- }
- return JIM_OK;
-}
-
-int JimParseListSep(struct JimParserCtx *pc)
-{
- pc->tstart = pc->p;
- pc->tline = pc->linenr;
- while (*pc->p == ' ' || *pc->p == '\t' || *pc->p == '\r' || *pc->p == '\n')
- {
- pc->p++; pc->len--;
- }
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_SEP;
- return JIM_OK;
-}
-
-int JimParseListStr(struct JimParserCtx *pc)
-{
- int newword = (pc->tt == JIM_TT_SEP || pc->tt == JIM_TT_EOL ||
- pc->tt == JIM_TT_NONE);
- if (newword && *pc->p == '{') {
- return JimParseBrace(pc);
- } else if (newword && *pc->p == '"') {
- pc->state = JIM_PS_QUOTE;
- pc->p++; pc->len--;
- }
- pc->tstart = pc->p;
- pc->tline = pc->linenr;
- while (1) {
- if (pc->len == 0) {
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_ESC;
- return JIM_OK;
- }
- switch (*pc->p) {
- case '\\':
- pc->p++; pc->len--;
- break;
- case ' ':
- case '\t':
- case '\n':
- case '\r':
- if (pc->state == JIM_PS_DEF) {
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_ESC;
- return JIM_OK;
- } else if (*pc->p == '\n') {
- pc->linenr++;
- }
- break;
- case '"':
- if (pc->state == JIM_PS_QUOTE) {
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_ESC;
- pc->p++; pc->len--;
- pc->state = JIM_PS_DEF;
- return JIM_OK;
- }
- break;
- }
- pc->p++; pc->len--;
- }
- return JIM_OK; /* unreached */
-}
-
-/* -----------------------------------------------------------------------------
- * Jim_Obj related functions
- * ---------------------------------------------------------------------------*/
-
-/* Return a new initialized object. */
-Jim_Obj *Jim_NewObj(Jim_Interp *interp)
-{
- Jim_Obj *objPtr;
-
- /* -- Check if there are objects in the free list -- */
- if (interp->freeList != NULL) {
- /* -- Unlink the object from the free list -- */
- objPtr = interp->freeList;
- interp->freeList = objPtr->nextObjPtr;
- } else {
- /* -- No ready to use objects: allocate a new one -- */
- objPtr = Jim_Alloc(sizeof(*objPtr));
- }
-
- /* Object is returned with refCount of 0. Every
- * kind of GC implemented should take care to don't try
- * to scan objects with refCount == 0. */
- objPtr->refCount = 0;
- /* All the other fields are left not initialized to save time.
- * The caller will probably want set they to the right
- * value anyway. */
-
- /* -- Put the object into the live list -- */
- objPtr->prevObjPtr = NULL;
- objPtr->nextObjPtr = interp->liveList;
- if (interp->liveList)
- interp->liveList->prevObjPtr = objPtr;
- interp->liveList = objPtr;
-
- return objPtr;
-}
-
-/* Free an object. Actually objects are never freed, but
- * just moved to the free objects list, where they will be
- * reused by Jim_NewObj(). */
-void Jim_FreeObj(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- /* Check if the object was already freed, panic. */
- if (objPtr->refCount != 0) {
- Jim_Panic(interp,"!!!Object %p freed with bad refcount %d", objPtr,
- objPtr->refCount);
- }
- /* Free the internal representation */
- Jim_FreeIntRep(interp, objPtr);
- /* Free the string representation */
- if (objPtr->bytes != NULL) {
- if (objPtr->bytes != JimEmptyStringRep)
- Jim_Free(objPtr->bytes);
- }
- /* Unlink the object from the live objects list */
- if (objPtr->prevObjPtr)
- objPtr->prevObjPtr->nextObjPtr = objPtr->nextObjPtr;
- if (objPtr->nextObjPtr)
- objPtr->nextObjPtr->prevObjPtr = objPtr->prevObjPtr;
- if (interp->liveList == objPtr)
- interp->liveList = objPtr->nextObjPtr;
- /* Link the object into the free objects list */
- objPtr->prevObjPtr = NULL;
- objPtr->nextObjPtr = interp->freeList;
- if (interp->freeList)
- interp->freeList->prevObjPtr = objPtr;
- interp->freeList = objPtr;
- objPtr->refCount = -1;
-}
-
-/* Invalidate the string representation of an object. */
-void Jim_InvalidateStringRep(Jim_Obj *objPtr)
-{
- if (objPtr->bytes != NULL) {
- if (objPtr->bytes != JimEmptyStringRep)
- Jim_Free(objPtr->bytes);
- }
- objPtr->bytes = NULL;
-}
-
-#define Jim_SetStringRep(o, b, l) \
- do { (o)->bytes = b; (o)->length = l; } while (0)
-
-/* Set the initial string representation for an object.
- * Does not try to free an old one. */
-void Jim_InitStringRep(Jim_Obj *objPtr, const char *bytes, int length)
-{
- if (length == 0) {
- objPtr->bytes = JimEmptyStringRep;
- objPtr->length = 0;
- } else {
- objPtr->bytes = Jim_Alloc(length + 1);
- objPtr->length = length;
- memcpy(objPtr->bytes, bytes, length);
- objPtr->bytes[length] = '\0';
- }
-}
-
-/* Duplicate an object. The returned object has refcount = 0. */
-Jim_Obj *Jim_DuplicateObj(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- Jim_Obj *dupPtr;
-
- dupPtr = Jim_NewObj(interp);
- if (objPtr->bytes == NULL) {
- /* Object does not have a valid string representation. */
- dupPtr->bytes = NULL;
- } else {
- Jim_InitStringRep(dupPtr, objPtr->bytes, objPtr->length);
- }
- if (objPtr->typePtr != NULL) {
- if (objPtr->typePtr->dupIntRepProc == NULL) {
- dupPtr->internalRep = objPtr->internalRep;
- } else {
- objPtr->typePtr->dupIntRepProc(interp, objPtr, dupPtr);
- }
- dupPtr->typePtr = objPtr->typePtr;
- } else {
- dupPtr->typePtr = NULL;
- }
- return dupPtr;
-}
-
-/* Return the string representation for objPtr. If the object
- * string representation is invalid, calls the method to create
- * a new one starting from the internal representation of the object. */
-const char *Jim_GetString(Jim_Obj *objPtr, int *lenPtr)
-{
- if (objPtr->bytes == NULL) {
- /* Invalid string repr. Generate it. */
- if (objPtr->typePtr->updateStringProc == NULL) {
- Jim_Panic(NULL,"UpdataStringProc called against '%s' type.",
- objPtr->typePtr->name);
- }
- objPtr->typePtr->updateStringProc(objPtr);
- }
- if (lenPtr)
- *lenPtr = objPtr->length;
- return objPtr->bytes;
-}
-
-/* Just returns the length of the object's string rep */
-int Jim_Length(Jim_Obj *objPtr)
-{
- int len;
-
- Jim_GetString(objPtr, &len);
- return len;
-}
-
-/* -----------------------------------------------------------------------------
- * String Object
- * ---------------------------------------------------------------------------*/
-static void DupStringInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
-static int SetStringFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
-
-static Jim_ObjType stringObjType = {
- "string",
- NULL,
- DupStringInternalRep,
- NULL,
- JIM_TYPE_REFERENCES,
-};
-
-void DupStringInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
-{
- JIM_NOTUSED(interp);
-
- /* This is a bit subtle: the only caller of this function
- * should be Jim_DuplicateObj(), that will copy the
- * string representaion. After the copy, the duplicated
- * object will not have more room in teh buffer than
- * srcPtr->length bytes. So we just set it to length. */
- dupPtr->internalRep.strValue.maxLength = srcPtr->length;
-}
-
-int SetStringFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- /* Get a fresh string representation. */
- (void) Jim_GetString(objPtr, NULL);
- /* Free any other internal representation. */
- Jim_FreeIntRep(interp, objPtr);
- /* Set it as string, i.e. just set the maxLength field. */
- objPtr->typePtr = &stringObjType;
- objPtr->internalRep.strValue.maxLength = objPtr->length;
- return JIM_OK;
-}
-
-Jim_Obj *Jim_NewStringObj(Jim_Interp *interp, const char *s, int len)
-{
- Jim_Obj *objPtr = Jim_NewObj(interp);
-
- if (len == -1)
- len = strlen(s);
- /* Alloc/Set the string rep. */
- if (len == 0) {
- objPtr->bytes = JimEmptyStringRep;
- objPtr->length = 0;
- } else {
- objPtr->bytes = Jim_Alloc(len + 1);
- objPtr->length = len;
- memcpy(objPtr->bytes, s, len);
- objPtr->bytes[len] = '\0';
- }
-
- /* No typePtr field for the vanilla string object. */
- objPtr->typePtr = NULL;
- return objPtr;
-}
-
-/* This version does not try to duplicate the 's' pointer, but
- * use it directly. */
-Jim_Obj *Jim_NewStringObjNoAlloc(Jim_Interp *interp, char *s, int len)
-{
- Jim_Obj *objPtr = Jim_NewObj(interp);
-
- if (len == -1)
- len = strlen(s);
- Jim_SetStringRep(objPtr, s, len);
- objPtr->typePtr = NULL;
- return objPtr;
-}
-
-/* Low-level string append. Use it only against objects
- * of type "string". */
-void StringAppendString(Jim_Obj *objPtr, const char *str, int len)
-{
- int needlen;
-
- if (len == -1)
- len = strlen(str);
- needlen = objPtr->length + len;
- if (objPtr->internalRep.strValue.maxLength < needlen ||
- objPtr->internalRep.strValue.maxLength == 0) {
- if (objPtr->bytes == JimEmptyStringRep) {
- objPtr->bytes = Jim_Alloc((needlen*2) + 1);
- } else {
- objPtr->bytes = Jim_Realloc(objPtr->bytes, (needlen*2) + 1);
- }
- objPtr->internalRep.strValue.maxLength = needlen*2;
- }
- memcpy(objPtr->bytes + objPtr->length, str, len);
- objPtr->bytes[objPtr->length + len] = '\0';
- objPtr->length += len;
-}
-
-/* Low-level wrapper to append an object. */
-void StringAppendObj(Jim_Obj *objPtr, Jim_Obj *appendObjPtr)
-{
- int len;
- const char *str;
-
- str = Jim_GetString(appendObjPtr, &len);
- StringAppendString(objPtr, str, len);
-}
-
-/* Higher level API to append strings to objects. */
-void Jim_AppendString(Jim_Interp *interp, Jim_Obj *objPtr, const char *str,
- int len)
-{
- if (Jim_IsShared(objPtr))
- Jim_Panic(interp,"Jim_AppendString called with shared object");
- if (objPtr->typePtr != &stringObjType)
- SetStringFromAny(interp, objPtr);
- StringAppendString(objPtr, str, len);
-}
-
-void Jim_AppendString_sprintf(Jim_Interp *interp, Jim_Obj *objPtr, const char *fmt, ...)
-{
- char *buf;
- va_list ap;
-
- va_start(ap, fmt);
- buf = jim_vasprintf(fmt, ap);
- va_end(ap);
-
- if (buf) {
- Jim_AppendString(interp, objPtr, buf, -1);
- jim_vasprintf_done(buf);
- }
-}
-
-
-void Jim_AppendObj(Jim_Interp *interp, Jim_Obj *objPtr,
- Jim_Obj *appendObjPtr)
-{
- int len;
- const char *str;
-
- str = Jim_GetString(appendObjPtr, &len);
- Jim_AppendString(interp, objPtr, str, len);
-}
-
-void Jim_AppendStrings(Jim_Interp *interp, Jim_Obj *objPtr, ...)
-{
- va_list ap;
-
- if (objPtr->typePtr != &stringObjType)
- SetStringFromAny(interp, objPtr);
- va_start(ap, objPtr);
- while (1) {
- char *s = va_arg(ap, char*);
-
- if (s == NULL) break;
- Jim_AppendString(interp, objPtr, s, -1);
- }
- va_end(ap);
-}
-
-int Jim_StringEqObj(Jim_Obj *aObjPtr, Jim_Obj *bObjPtr, int nocase)
-{
- const char *aStr, *bStr;
- int aLen, bLen, i;
-
- if (aObjPtr == bObjPtr) return 1;
- aStr = Jim_GetString(aObjPtr, &aLen);
- bStr = Jim_GetString(bObjPtr, &bLen);
- if (aLen != bLen) return 0;
- if (nocase == 0)
- return memcmp(aStr, bStr, aLen) == 0;
- for (i = 0; i < aLen; i++) {
- if (tolower((int)aStr[i]) != tolower((int)bStr[i]))
- return 0;
- }
- return 1;
-}
-
-int Jim_StringMatchObj(Jim_Obj *patternObjPtr, Jim_Obj *objPtr,
- int nocase)
-{
- const char *pattern, *string;
- int patternLen, stringLen;
-
- pattern = Jim_GetString(patternObjPtr, &patternLen);
- string = Jim_GetString(objPtr, &stringLen);
- return JimStringMatch(pattern, patternLen, string, stringLen, nocase);
-}
-
-int Jim_StringCompareObj(Jim_Obj *firstObjPtr,
- Jim_Obj *secondObjPtr, int nocase)
-{
- const char *s1, *s2;
- int l1, l2;
-
- s1 = Jim_GetString(firstObjPtr, &l1);
- s2 = Jim_GetString(secondObjPtr, &l2);
- return JimStringCompare(s1, l1, s2, l2, nocase);
-}
-
-/* Convert a range, as returned by Jim_GetRange(), into
- * an absolute index into an object of the specified length.
- * This function may return negative values, or values
- * bigger or equal to the length of the list if the index
- * is out of range. */
-static int JimRelToAbsIndex(int len, int index_t)
-{
- if (index_t < 0)
- return len + index_t;
- return index_t;
-}
-
-/* Convert a pair of index as normalize by JimRelToAbsIndex(),
- * into a range stored in *firstPtr, *lastPtr, *rangeLenPtr, suitable
- * for implementation of commands like [string range] and [lrange].
- *
- * The resulting range is guaranteed to address valid elements of
- * the structure. */
-static void JimRelToAbsRange(int len, int first, int last,
- int *firstPtr, int *lastPtr, int *rangeLenPtr)
-{
- int rangeLen;
-
- if (first > last) {
- rangeLen = 0;
- } else {
- rangeLen = last-first + 1;
- if (rangeLen) {
- if (first < 0) {
- rangeLen += first;
- first = 0;
- }
- if (last >= len) {
- rangeLen -= (last-(len-1));
- last = len-1;
- }
- }
- }
- if (rangeLen < 0) rangeLen = 0;
-
- *firstPtr = first;
- *lastPtr = last;
- *rangeLenPtr = rangeLen;
-}
-
-Jim_Obj *Jim_StringRangeObj(Jim_Interp *interp,
- Jim_Obj *strObjPtr, Jim_Obj *firstObjPtr, Jim_Obj *lastObjPtr)
-{
- int first, last;
- const char *str;
- int len, rangeLen;
-
- if (Jim_GetIndex(interp, firstObjPtr, &first) != JIM_OK ||
- Jim_GetIndex(interp, lastObjPtr, &last) != JIM_OK)
- return NULL;
- str = Jim_GetString(strObjPtr, &len);
- first = JimRelToAbsIndex(len, first);
- last = JimRelToAbsIndex(len, last);
- JimRelToAbsRange(len, first, last, &first, &last, &rangeLen);
- return Jim_NewStringObj(interp, str + first, rangeLen);
-}
-
-static Jim_Obj *JimStringToLower(Jim_Interp *interp, Jim_Obj *strObjPtr)
-{
- char *buf;
- int i;
- if (strObjPtr->typePtr != &stringObjType) {
- SetStringFromAny(interp, strObjPtr);
- }
-
- buf = Jim_Alloc(strObjPtr->length + 1);
-
- memcpy(buf, strObjPtr->bytes, strObjPtr->length + 1);
- for (i = 0; i < strObjPtr->length; i++)
- buf[i] = tolower((unsigned)buf[i]);
- return Jim_NewStringObjNoAlloc(interp, buf, strObjPtr->length);
-}
-
-static Jim_Obj *JimStringToUpper(Jim_Interp *interp, Jim_Obj *strObjPtr)
-{
- char *buf;
- int i;
- if (strObjPtr->typePtr != &stringObjType) {
- SetStringFromAny(interp, strObjPtr);
- }
-
- buf = Jim_Alloc(strObjPtr->length + 1);
-
- memcpy(buf, strObjPtr->bytes, strObjPtr->length + 1);
- for (i = 0; i < strObjPtr->length; i++)
- buf[i] = toupper((unsigned)buf[i]);
- return Jim_NewStringObjNoAlloc(interp, buf, strObjPtr->length);
-}
-
-/* This is the core of the [format] command.
- * TODO: Lots of things work - via a hack
- * However, no format item can be >= JIM_MAX_FMT
- */
-#define JIM_MAX_FMT 2048
-static Jim_Obj *Jim_FormatString_Inner(Jim_Interp *interp, Jim_Obj *fmtObjPtr,
- int objc, Jim_Obj *const *objv, char *sprintf_buf)
-{
- const char *fmt, *_fmt;
- int fmtLen;
- Jim_Obj *resObjPtr;
-
-
- fmt = Jim_GetString(fmtObjPtr, &fmtLen);
- _fmt = fmt;
- resObjPtr = Jim_NewStringObj(interp, "", 0);
- while (fmtLen) {
- const char *p = fmt;
- char spec[2], c;
- jim_wide wideValue;
- double doubleValue;
- /* we cheat and use Sprintf()! */
- char fmt_str[100];
- char *cp;
- int width;
- int ljust;
- int zpad;
- int spad;
- int altfm;
- int forceplus;
- int prec;
- int inprec;
- int haveprec;
- int accum;
-
- while (*fmt != '%' && fmtLen) {
- fmt++; fmtLen--;
- }
- Jim_AppendString(interp, resObjPtr, p, fmt-p);
- if (fmtLen == 0)
- break;
- fmt++; fmtLen--; /* skip '%' */
- zpad = 0;
- spad = 0;
- width = -1;
- ljust = 0;
- altfm = 0;
- forceplus = 0;
- inprec = 0;
- haveprec = 0;
- prec = -1; /* not found yet */
- next_fmt:
- if (fmtLen <= 0) {
- break;
- }
- switch (*fmt) {
- /* terminals */
- case 'b': /* binary - not all printfs() do this */
- case 's': /* string */
- case 'i': /* integer */
- case 'd': /* decimal */
- case 'x': /* hex */
- case 'X': /* CAP hex */
- case 'c': /* char */
- case 'o': /* octal */
- case 'u': /* unsigned */
- case 'f': /* float */
- break;
-
- /* non-terminals */
- case '0': /* zero pad */
- zpad = 1;
- fmt++; fmtLen--;
- goto next_fmt;
- break;
- case '+':
- forceplus = 1;
- fmt++; fmtLen--;
- goto next_fmt;
- break;
- case ' ': /* sign space */
- spad = 1;
- fmt++; fmtLen--;
- goto next_fmt;
- break;
- case '-':
- ljust = 1;
- fmt++; fmtLen--;
- goto next_fmt;
- break;
- case '#':
- altfm = 1;
- fmt++; fmtLen--;
- goto next_fmt;
-
- case '.':
- inprec = 1;
- fmt++; fmtLen--;
- goto next_fmt;
- break;
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- accum = 0;
- while (isdigit((unsigned)*fmt) && (fmtLen > 0)) {
- accum = (accum * 10) + (*fmt - '0');
- fmt++; fmtLen--;
- }
- if (inprec) {
- haveprec = 1;
- prec = accum;
- } else {
- width = accum;
- }
- goto next_fmt;
- case '*':
- /* suck up the next item as an integer */
- fmt++; fmtLen--;
- objc--;
- if (objc <= 0) {
- goto not_enough_args;
- }
- if (Jim_GetWide(interp,objv[0],&wideValue)== JIM_ERR) {
- Jim_FreeNewObj(interp, resObjPtr);
- return NULL;
- }
- if (inprec) {
- haveprec = 1;
- prec = wideValue;
- if (prec < 0) {
- /* man 3 printf says */
- /* if prec is negative, it is zero */
- prec = 0;
- }
- } else {
- width = wideValue;
- if (width < 0) {
- ljust = 1;
- width = -width;
- }
- }
- objv++;
- goto next_fmt;
- break;
- }
-
-
- if (*fmt != '%') {
- if (objc == 0) {
- not_enough_args:
- Jim_FreeNewObj(interp, resObjPtr);
- Jim_SetResultString(interp,
- "not enough arguments for all format specifiers", -1);
- return NULL;
- } else {
- objc--;
- }
- }
-
- /*
- * Create the formatter
- * cause we cheat and use sprintf()
- */
- cp = fmt_str;
- *cp++ = '%';
- if (altfm) {
- *cp++ = '#';
- }
- if (forceplus) {
- *cp++ = '+';
- } else if (spad) {
- /* PLUS overrides */
- *cp++ = ' ';
- }
- if (ljust) {
- *cp++ = '-';
- }
- if (zpad) {
- *cp++ = '0';
- }
- if (width > 0) {
- sprintf(cp, "%d", width);
- /* skip ahead */
- cp = strchr(cp,0);
- }
- /* did we find a period? */
- if (inprec) {
- /* then add it */
- *cp++ = '.';
- /* did something occur after the period? */
- if (haveprec) {
- sprintf(cp, "%d", prec);
- }
- cp = strchr(cp,0);
- }
- *cp = 0;
-
- /* here we do the work */
- /* actually - we make sprintf() do it for us */
- switch (*fmt) {
- case 's':
- *cp++ = 's';
- *cp = 0;
- /* BUG: we do not handled embeded NULLs */
- snprintf(sprintf_buf, JIM_MAX_FMT, fmt_str, Jim_GetString(objv[0], NULL));
- break;
- case 'c':
- *cp++ = 'c';
- *cp = 0;
- if (Jim_GetWide(interp, objv[0], &wideValue) == JIM_ERR) {
- Jim_FreeNewObj(interp, resObjPtr);
- return NULL;
- }
- c = (char) wideValue;
- snprintf(sprintf_buf, JIM_MAX_FMT, fmt_str, c);
- break;
- case 'f':
- case 'F':
- case 'g':
- case 'G':
- case 'e':
- case 'E':
- *cp++ = *fmt;
- *cp = 0;
- if (Jim_GetDouble(interp, objv[0], &doubleValue) == JIM_ERR) {
- Jim_FreeNewObj(interp, resObjPtr);
- return NULL;
- }
- snprintf(sprintf_buf, JIM_MAX_FMT, fmt_str, doubleValue);
- break;
- case 'b':
- case 'd':
- case 'o':
- case 'i':
- case 'u':
- case 'x':
- case 'X':
- /* jim widevaluse are 64bit */
- if (sizeof(jim_wide) == sizeof(long long)) {
- *cp++ = 'l';
- *cp++ = 'l';
- } else {
- *cp++ = 'l';
- }
- *cp++ = *fmt;
- *cp = 0;
- if (Jim_GetWide(interp, objv[0], &wideValue) == JIM_ERR) {
- Jim_FreeNewObj(interp, resObjPtr);
- return NULL;
- }
- snprintf(sprintf_buf, JIM_MAX_FMT, fmt_str, wideValue);
- break;
- case '%':
- sprintf_buf[0] = '%';
- sprintf_buf[1] = 0;
- objv--; /* undo the objv++ below */
- break;
- default:
- spec[0] = *fmt; spec[1] = '\0';
- Jim_FreeNewObj(interp, resObjPtr);
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "bad field specifier \"", spec, "\"", NULL);
- return NULL;
- }
- /* force terminate */
-#if 0
- printf("FMT was: %s\n", fmt_str);
- printf("RES was: |%s|\n", sprintf_buf);
-#endif
-
- sprintf_buf[ JIM_MAX_FMT - 1] = 0;
- Jim_AppendString(interp, resObjPtr, sprintf_buf, strlen(sprintf_buf));
- /* next obj */
- objv++;
- fmt++;
- fmtLen--;
- }
- return resObjPtr;
-}
-
-Jim_Obj *Jim_FormatString(Jim_Interp *interp, Jim_Obj *fmtObjPtr,
- int objc, Jim_Obj *const *objv)
-{
- char *sprintf_buf = malloc(JIM_MAX_FMT);
- Jim_Obj *t = Jim_FormatString_Inner(interp, fmtObjPtr, objc, objv, sprintf_buf);
- free(sprintf_buf);
- return t;
-}
-
-/* -----------------------------------------------------------------------------
- * Compared String Object
- * ---------------------------------------------------------------------------*/
-
-/* This is strange object that allows to compare a C literal string
- * with a Jim object in very short time if the same comparison is done
- * multiple times. For example every time the [if] command is executed,
- * Jim has to check if a given argument is "else". This comparions if
- * the code has no errors are true most of the times, so we can cache
- * inside the object the pointer of the string of the last matching
- * comparison. Because most C compilers perform literal sharing,
- * so that: char *x = "foo", char *y = "foo", will lead to x == y,
- * this works pretty well even if comparisons are at different places
- * inside the C code. */
-
-static Jim_ObjType comparedStringObjType = {
- "compared-string",
- NULL,
- NULL,
- NULL,
- JIM_TYPE_REFERENCES,
-};
-
-/* The only way this object is exposed to the API is via the following
- * function. Returns true if the string and the object string repr.
- * are the same, otherwise zero is returned.
- *
- * Note: this isn't binary safe, but it hardly needs to be.*/
-int Jim_CompareStringImmediate(Jim_Interp *interp, Jim_Obj *objPtr,
- const char *str)
-{
- if (objPtr->typePtr == &comparedStringObjType &&
- objPtr->internalRep.ptr == str)
- return 1;
- else {
- const char *objStr = Jim_GetString(objPtr, NULL);
- if (strcmp(str, objStr) != 0) return 0;
- if (objPtr->typePtr != &comparedStringObjType) {
- Jim_FreeIntRep(interp, objPtr);
- objPtr->typePtr = &comparedStringObjType;
- }
- objPtr->internalRep.ptr = (char*)str; /*ATTENTION: const cast */
- return 1;
- }
-}
-
-int qsortCompareStringPointers(const void *a, const void *b)
-{
- char * const *sa = (char * const *)a;
- char * const *sb = (char * const *)b;
- return strcmp(*sa, *sb);
-}
-
-int Jim_GetEnum(Jim_Interp *interp, Jim_Obj *objPtr,
- const char * const *tablePtr, int *indexPtr, const char *name, int flags)
-{
- const char * const *entryPtr = NULL;
- char **tablePtrSorted;
- int i, count = 0;
-
- *indexPtr = -1;
- for (entryPtr = tablePtr, i = 0; *entryPtr != NULL; entryPtr++, i++) {
- if (Jim_CompareStringImmediate(interp, objPtr, *entryPtr)) {
- *indexPtr = i;
- return JIM_OK;
- }
- count++; /* If nothing matches, this will reach the len of tablePtr */
- }
- if (flags & JIM_ERRMSG) {
- if (name == NULL)
- name = "option";
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "bad ", name, " \"", Jim_GetString(objPtr, NULL), "\": must be one of ",
- NULL);
- tablePtrSorted = Jim_Alloc(sizeof(char*)*count);
- memcpy(tablePtrSorted, tablePtr, sizeof(char*)*count);
- qsort(tablePtrSorted, count, sizeof(char*), qsortCompareStringPointers);
- for (i = 0; i < count; i++) {
- if (i + 1 == count && count > 1)
- Jim_AppendString(interp, Jim_GetResult(interp), "or ", -1);
- Jim_AppendString(interp, Jim_GetResult(interp),
- tablePtrSorted[i], -1);
- if (i + 1 != count)
- Jim_AppendString(interp, Jim_GetResult(interp), ", ", -1);
- }
- Jim_Free(tablePtrSorted);
- }
- return JIM_ERR;
-}
-
-int Jim_GetNvp(Jim_Interp *interp,
- Jim_Obj *objPtr,
- const Jim_Nvp *nvp_table,
- const Jim_Nvp ** result)
-{
- Jim_Nvp *n;
- int e;
-
- e = Jim_Nvp_name2value_obj(interp, nvp_table, objPtr, &n);
- if (e == JIM_ERR) {
- return e;
- }
-
- /* Success? found? */
- if (n->name) {
- /* remove const */
- *result = (Jim_Nvp *)n;
- return JIM_OK;
- } else {
- return JIM_ERR;
- }
-}
-
-/* -----------------------------------------------------------------------------
- * Source Object
- *
- * This object is just a string from the language point of view, but
- * in the internal representation it contains the filename and line number
- * where this given token was read. This information is used by
- * Jim_EvalObj() if the object passed happens to be of type "source".
- *
- * This allows to propagate the information about line numbers and file
- * names and give error messages with absolute line numbers.
- *
- * Note that this object uses shared strings for filenames, and the
- * pointer to the filename together with the line number is taken into
- * the space for the "inline" internal represenation of the Jim_Object,
- * so there is almost memory zero-overhead.
- *
- * Also the object will be converted to something else if the given
- * token it represents in the source file is not something to be
- * evaluated (not a script), and will be specialized in some other way,
- * so the time overhead is alzo null.
- * ---------------------------------------------------------------------------*/
-
-static void FreeSourceInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
-static void DupSourceInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
-
-static Jim_ObjType sourceObjType = {
- "source",
- FreeSourceInternalRep,
- DupSourceInternalRep,
- NULL,
- JIM_TYPE_REFERENCES,
-};
-
-void FreeSourceInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- Jim_ReleaseSharedString(interp,
- objPtr->internalRep.sourceValue.fileName);
-}
-
-void DupSourceInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
-{
- dupPtr->internalRep.sourceValue.fileName =
- Jim_GetSharedString(interp,
- srcPtr->internalRep.sourceValue.fileName);
- dupPtr->internalRep.sourceValue.lineNumber =
- dupPtr->internalRep.sourceValue.lineNumber;
- dupPtr->typePtr = &sourceObjType;
-}
-
-static void JimSetSourceInfo(Jim_Interp *interp, Jim_Obj *objPtr,
- const char *fileName, int lineNumber)
-{
- if (Jim_IsShared(objPtr))
- Jim_Panic(interp,"JimSetSourceInfo called with shared object");
- if (objPtr->typePtr != NULL)
- Jim_Panic(interp,"JimSetSourceInfo called with typePtr != NULL");
- objPtr->internalRep.sourceValue.fileName =
- Jim_GetSharedString(interp, fileName);
- objPtr->internalRep.sourceValue.lineNumber = lineNumber;
- objPtr->typePtr = &sourceObjType;
-}
-
-/* -----------------------------------------------------------------------------
- * Script Object
- * ---------------------------------------------------------------------------*/
-
-#define JIM_CMDSTRUCT_EXPAND -1
-
-static void FreeScriptInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
-static void DupScriptInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
-static int SetScriptFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
-
-static Jim_ObjType scriptObjType = {
- "script",
- FreeScriptInternalRep,
- DupScriptInternalRep,
- NULL,
- JIM_TYPE_REFERENCES,
-};
-
-/* The ScriptToken structure represents every token into a scriptObj.
- * Every token contains an associated Jim_Obj that can be specialized
- * by commands operating on it. */
-typedef struct ScriptToken {
- int type;
- Jim_Obj *objPtr;
- int linenr;
-} ScriptToken;
-
-/* This is the script object internal representation. An array of
- * ScriptToken structures, with an associated command structure array.
- * The command structure is a pre-computed representation of the
- * command length and arguments structure as a simple liner array
- * of integers.
- *
- * For example the script:
- *
- * puts hello
- * set $i $x$y [foo]BAR
- *
- * will produce a ScriptObj with the following Tokens:
- *
- * ESC puts
- * SEP
- * ESC hello
- * EOL
- * ESC set
- * EOL
- * VAR i
- * SEP
- * VAR x
- * VAR y
- * SEP
- * CMD foo
- * ESC BAR
- * EOL
- *
- * This is a description of the tokens, separators, and of lines.
- * The command structure instead represents the number of arguments
- * of every command, followed by the tokens of which every argument
- * is composed. So for the example script, the cmdstruct array will
- * contain:
- *
- * 2 1 1 4 1 1 2 2
- *
- * Because "puts hello" has two args (2), composed of single tokens (1 1)
- * While "set $i $x$y [foo]BAR" has four (4) args, the first two
- * composed of single tokens (1 1) and the last two of double tokens
- * (2 2).
- *
- * The precomputation of the command structure makes Jim_Eval() faster,
- * and simpler because there aren't dynamic lengths / allocations.
- *
- * -- {expand} handling --
- *
- * Expand is handled in a special way. When a command
- * contains at least an argument with the {expand} prefix,
- * the command structure presents a -1 before the integer
- * describing the number of arguments. This is used in order
- * to send the command exection to a different path in case
- * of {expand} and guarantee a fast path for the more common
- * case. Also, the integers describing the number of tokens
- * are expressed with negative sign, to allow for fast check
- * of what's an {expand}-prefixed argument and what not.
- *
- * For example the command:
- *
- * list {expand}{1 2}
- *
- * Will produce the following cmdstruct array:
- *
- * -1 2 1 -2
- *
- * -- the substFlags field of the structure --
- *
- * The scriptObj structure is used to represent both "script" objects
- * and "subst" objects. In the second case, the cmdStruct related
- * fields are not used at all, but there is an additional field used
- * that is 'substFlags': this represents the flags used to turn
- * the string into the intenral representation used to perform the
- * substitution. If this flags are not what the application requires
- * the scriptObj is created again. For example the script:
- *
- * subst -nocommands $string
- * subst -novariables $string
- *
- * Will recreate the internal representation of the $string object
- * two times.
- */
-typedef struct ScriptObj {
- int len; /* Length as number of tokens. */
- int commands; /* number of top-level commands in script. */
- ScriptToken *token; /* Tokens array. */
- int *cmdStruct; /* commands structure */
- int csLen; /* length of the cmdStruct array. */
- int substFlags; /* flags used for the compilation of "subst" objects */
- int inUse; /* Used to share a ScriptObj. Currently
- only used by Jim_EvalObj() as protection against
- shimmering of the currently evaluated object. */
- char *fileName;
-} ScriptObj;
-
-void FreeScriptInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- int i;
- struct ScriptObj *script = (void*) objPtr->internalRep.ptr;
-
- if (!script)
- return;
-
- script->inUse--;
- if (script->inUse != 0) return;
- for (i = 0; i < script->len; i++) {
- if (script->token[i].objPtr != NULL)
- Jim_DecrRefCount(interp, script->token[i].objPtr);
- }
- Jim_Free(script->token);
- Jim_Free(script->cmdStruct);
- Jim_Free(script->fileName);
- Jim_Free(script);
-}
-
-void DupScriptInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
-{
- JIM_NOTUSED(interp);
- JIM_NOTUSED(srcPtr);
-
- /* Just returns an simple string. */
- dupPtr->typePtr = NULL;
-}
-
-/* Add a new token to the internal repr of a script object */
-static void ScriptObjAddToken(Jim_Interp *interp, struct ScriptObj *script,
- char *strtoken, int len, int type, char *filename, int linenr)
-{
- int prevtype;
- struct ScriptToken *token;
-
- prevtype = (script->len == 0) ? JIM_TT_EOL : \
- script->token[script->len-1].type;
- /* Skip tokens without meaning, like words separators
- * following a word separator or an end of command and
- * so on. */
- if (prevtype == JIM_TT_EOL) {
- if (type == JIM_TT_EOL || type == JIM_TT_SEP) {
- Jim_Free(strtoken);
- return;
- }
- } else if (prevtype == JIM_TT_SEP) {
- if (type == JIM_TT_SEP) {
- Jim_Free(strtoken);
- return;
- } else if (type == JIM_TT_EOL) {
- /* If an EOL is following by a SEP, drop the previous
- * separator. */
- script->len--;
- Jim_DecrRefCount(interp, script->token[script->len].objPtr);
- }
- } else if (prevtype != JIM_TT_EOL && prevtype != JIM_TT_SEP &&
- type == JIM_TT_ESC && len == 0)
- {
- /* Don't add empty tokens used in interpolation */
- Jim_Free(strtoken);
- return;
- }
- /* Make space for a new istruction */
- script->len++;
- script->token = Jim_Realloc(script->token,
- sizeof(ScriptToken)*script->len);
- /* Initialize the new token */
- token = script->token + (script->len-1);
- token->type = type;
- /* Every object is intially as a string, but the
- * internal type may be specialized during execution of the
- * script. */
- token->objPtr = Jim_NewStringObjNoAlloc(interp, strtoken, len);
- /* To add source info to SEP and EOL tokens is useless because
- * they will never by called as arguments of Jim_EvalObj(). */
- if (filename && type != JIM_TT_SEP && type != JIM_TT_EOL)
- JimSetSourceInfo(interp, token->objPtr, filename, linenr);
- Jim_IncrRefCount(token->objPtr);
- token->linenr = linenr;
-}
-
-/* Add an integer into the command structure field of the script object. */
-static void ScriptObjAddInt(struct ScriptObj *script, int val)
-{
- script->csLen++;
- script->cmdStruct = Jim_Realloc(script->cmdStruct,
- sizeof(int)*script->csLen);
- script->cmdStruct[script->csLen-1] = val;
-}
-
-/* Search a Jim_Obj contained in 'script' with the same stinrg repr.
- * of objPtr. Search nested script objects recursively. */
-static Jim_Obj *ScriptSearchLiteral(Jim_Interp *interp, ScriptObj *script,
- ScriptObj *scriptBarrier, Jim_Obj *objPtr)
-{
- int i;
-
- for (i = 0; i < script->len; i++) {
- if (script->token[i].objPtr != objPtr &&
- Jim_StringEqObj(script->token[i].objPtr, objPtr, 0)) {
- return script->token[i].objPtr;
- }
- /* Enter recursively on scripts only if the object
- * is not the same as the one we are searching for
- * shared occurrences. */
- if (script->token[i].objPtr->typePtr == &scriptObjType &&
- script->token[i].objPtr != objPtr) {
- Jim_Obj *foundObjPtr;
-
- ScriptObj *subScript =
- script->token[i].objPtr->internalRep.ptr;
- /* Don't recursively enter the script we are trying
- * to make shared to avoid circular references. */
- if (subScript == scriptBarrier) continue;
- if (subScript != script) {
- foundObjPtr =
- ScriptSearchLiteral(interp, subScript,
- scriptBarrier, objPtr);
- if (foundObjPtr != NULL)
- return foundObjPtr;
- }
- }
- }
- return NULL;
-}
-
-/* Share literals of a script recursively sharing sub-scripts literals. */
-static void ScriptShareLiterals(Jim_Interp *interp, ScriptObj *script,
- ScriptObj *topLevelScript)
-{
- int i, j;
-
- return;
- /* Try to share with toplevel object. */
- if (topLevelScript != NULL) {
- for (i = 0; i < script->len; i++) {
- Jim_Obj *foundObjPtr;
- char *str = script->token[i].objPtr->bytes;
-
- if (script->token[i].objPtr->refCount != 1) continue;
- if (script->token[i].objPtr->typePtr == &scriptObjType) continue;
- if (strchr(str, ' ') || strchr(str, '\n')) continue;
- foundObjPtr = ScriptSearchLiteral(interp,
- topLevelScript,
- script, /* barrier */
- script->token[i].objPtr);
- if (foundObjPtr != NULL) {
- Jim_IncrRefCount(foundObjPtr);
- Jim_DecrRefCount(interp,
- script->token[i].objPtr);
- script->token[i].objPtr = foundObjPtr;
- }
- }
- }
- /* Try to share locally */
- for (i = 0; i < script->len; i++) {
- char *str = script->token[i].objPtr->bytes;
-
- if (script->token[i].objPtr->refCount != 1) continue;
- if (strchr(str, ' ') || strchr(str, '\n')) continue;
- for (j = 0; j < script->len; j++) {
- if (script->token[i].objPtr !=
- script->token[j].objPtr &&
- Jim_StringEqObj(script->token[i].objPtr,
- script->token[j].objPtr, 0))
- {
- Jim_IncrRefCount(script->token[j].objPtr);
- Jim_DecrRefCount(interp,
- script->token[i].objPtr);
- script->token[i].objPtr =
- script->token[j].objPtr;
- }
- }
- }
-}
-
-/* This method takes the string representation of an object
- * as a Tcl script, and generates the pre-parsed internal representation
- * of the script. */
-int SetScriptFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr)
-{
- int scriptTextLen;
- const char *scriptText = Jim_GetString(objPtr, &scriptTextLen);
- struct JimParserCtx parser;
- struct ScriptObj *script = Jim_Alloc(sizeof(*script));
- ScriptToken *token;
- int args, tokens, start, end, i;
- int initialLineNumber;
- int propagateSourceInfo = 0;
-
- script->len = 0;
- script->csLen = 0;
- script->commands = 0;
- script->token = NULL;
- script->cmdStruct = NULL;
- script->inUse = 1;
- /* Try to get information about filename / line number */
- if (objPtr->typePtr == &sourceObjType) {
- script->fileName =
- Jim_StrDup(objPtr->internalRep.sourceValue.fileName);
- initialLineNumber = objPtr->internalRep.sourceValue.lineNumber;
- propagateSourceInfo = 1;
- } else {
- script->fileName = Jim_StrDup("");
- initialLineNumber = 1;
- }
-
- JimParserInit(&parser, scriptText, scriptTextLen, initialLineNumber);
- while (!JimParserEof(&parser)) {
- char *token_t;
- int len, type, linenr;
-
- JimParseScript(&parser);
- token_t = JimParserGetToken(&parser, &len, &type, &linenr);
- ScriptObjAddToken(interp, script, token_t, len, type,
- propagateSourceInfo ? script->fileName : NULL,
- linenr);
- }
- token = script->token;
-
- /* Compute the command structure array
- * (see the ScriptObj struct definition for more info) */
- start = 0; /* Current command start token index */
- end = -1; /* Current command end token index */
- while (1) {
- int expand = 0; /* expand flag. set to 1 on {expand} form. */
- int interpolation = 0; /* set to 1 if there is at least one
- argument of the command obtained via
- interpolation of more tokens. */
- /* Search for the end of command, while
- * count the number of args. */
- start = ++end;
- if (start >= script->len) break;
- args = 1; /* Number of args in current command */
- while (token[end].type != JIM_TT_EOL) {
- if (end == 0 || token[end-1].type == JIM_TT_SEP ||
- token[end-1].type == JIM_TT_EOL)
- {
- if (token[end].type == JIM_TT_STR &&
- token[end + 1].type != JIM_TT_SEP &&
- token[end + 1].type != JIM_TT_EOL &&
- (!strcmp(token[end].objPtr->bytes, "expand") ||
- !strcmp(token[end].objPtr->bytes, "*")))
- expand++;
- }
- if (token[end].type == JIM_TT_SEP)
- args++;
- end++;
- }
- interpolation = !((end-start + 1) == args*2);
- /* Add the 'number of arguments' info into cmdstruct.
- * Negative value if there is list expansion involved. */
- if (expand)
- ScriptObjAddInt(script, -1);
- ScriptObjAddInt(script, args);
- /* Now add info about the number of tokens. */
- tokens = 0; /* Number of tokens in current argument. */
- expand = 0;
- for (i = start; i <= end; i++) {
- if (token[i].type == JIM_TT_SEP ||
- token[i].type == JIM_TT_EOL)
- {
- if (tokens == 1 && expand)
- expand = 0;
- ScriptObjAddInt(script,
- expand ? -tokens : tokens);
-
- expand = 0;
- tokens = 0;
- continue;
- } else if (tokens == 0 && token[i].type == JIM_TT_STR &&
- (!strcmp(token[i].objPtr->bytes, "expand") ||
- !strcmp(token[i].objPtr->bytes, "*")))
- {
- expand++;
- }
- tokens++;
- }
- }
- /* Perform literal sharing, but only for objects that appear
- * to be scripts written as literals inside the source code,
- * and not computed at runtime. Literal sharing is a costly
- * operation that should be done only against objects that
- * are likely to require compilation only the first time, and
- * then are executed multiple times. */
- if (propagateSourceInfo && interp->framePtr->procBodyObjPtr) {
- Jim_Obj *bodyObjPtr = interp->framePtr->procBodyObjPtr;
- if (bodyObjPtr->typePtr == &scriptObjType) {
- ScriptObj *bodyScript =
- bodyObjPtr->internalRep.ptr;
- ScriptShareLiterals(interp, script, bodyScript);
- }
- } else if (propagateSourceInfo) {
- ScriptShareLiterals(interp, script, NULL);
- }
- /* Free the old internal rep and set the new one. */
- Jim_FreeIntRep(interp, objPtr);
- Jim_SetIntRepPtr(objPtr, script);
- objPtr->typePtr = &scriptObjType;
- return JIM_OK;
-}
-
-ScriptObj *Jim_GetScript(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- if (objPtr->typePtr != &scriptObjType) {
- SetScriptFromAny(interp, objPtr);
- }
- return (ScriptObj*) Jim_GetIntRepPtr(objPtr);
-}
-
-/* -----------------------------------------------------------------------------
- * Commands
- * ---------------------------------------------------------------------------*/
-
-/* Commands HashTable Type.
- *
- * Keys are dynamic allocated strings, Values are Jim_Cmd structures. */
-static void Jim_CommandsHT_ValDestructor(void *interp, void *val)
-{
- Jim_Cmd *cmdPtr = (void*) val;
-
- if (cmdPtr->cmdProc == NULL) {
- Jim_DecrRefCount(interp, cmdPtr->argListObjPtr);
- Jim_DecrRefCount(interp, cmdPtr->bodyObjPtr);
- if (cmdPtr->staticVars) {
- Jim_FreeHashTable(cmdPtr->staticVars);
- Jim_Free(cmdPtr->staticVars);
- }
- } else if (cmdPtr->delProc != NULL) {
- /* If it was a C coded command, call the delProc if any */
- cmdPtr->delProc(interp, cmdPtr->privData);
- }
- Jim_Free(val);
-}
-
-static Jim_HashTableType JimCommandsHashTableType = {
- JimStringCopyHTHashFunction, /* hash function */
- JimStringCopyHTKeyDup, /* key dup */
- NULL, /* val dup */
- JimStringCopyHTKeyCompare, /* key compare */
- JimStringCopyHTKeyDestructor, /* key destructor */
- Jim_CommandsHT_ValDestructor /* val destructor */
-};
-
-/* ------------------------- Commands related functions --------------------- */
-
-int Jim_CreateCommand(Jim_Interp *interp, const char *cmdName,
- Jim_CmdProc cmdProc, void *privData, Jim_DelCmdProc delProc)
-{
- Jim_HashEntry *he;
- Jim_Cmd *cmdPtr;
-
- he = Jim_FindHashEntry(&interp->commands, cmdName);
- if (he == NULL) { /* New command to create */
- cmdPtr = Jim_Alloc(sizeof(*cmdPtr));
- Jim_AddHashEntry(&interp->commands, cmdName, cmdPtr);
- } else {
- Jim_InterpIncrProcEpoch(interp);
- /* Free the arglist/body objects if it was a Tcl procedure */
- cmdPtr = he->val;
- if (cmdPtr->cmdProc == NULL) {
- Jim_DecrRefCount(interp, cmdPtr->argListObjPtr);
- Jim_DecrRefCount(interp, cmdPtr->bodyObjPtr);
- if (cmdPtr->staticVars) {
- Jim_FreeHashTable(cmdPtr->staticVars);
- Jim_Free(cmdPtr->staticVars);
- }
- cmdPtr->staticVars = NULL;
- } else if (cmdPtr->delProc != NULL) {
- /* If it was a C coded command, call the delProc if any */
- cmdPtr->delProc(interp, cmdPtr->privData);
- }
- }
-
- /* Store the new details for this proc */
- cmdPtr->delProc = delProc;
- cmdPtr->cmdProc = cmdProc;
- cmdPtr->privData = privData;
-
- /* There is no need to increment the 'proc epoch' because
- * creation of a new procedure can never affect existing
- * cached commands. We don't do negative caching. */
- return JIM_OK;
-}
-
-int Jim_CreateProcedure(Jim_Interp *interp, const char *cmdName,
- Jim_Obj *argListObjPtr, Jim_Obj *staticsListObjPtr, Jim_Obj *bodyObjPtr,
- int arityMin, int arityMax)
-{
- Jim_Cmd *cmdPtr;
-
- cmdPtr = Jim_Alloc(sizeof(*cmdPtr));
- cmdPtr->cmdProc = NULL; /* Not a C coded command */
- cmdPtr->argListObjPtr = argListObjPtr;
- cmdPtr->bodyObjPtr = bodyObjPtr;
- Jim_IncrRefCount(argListObjPtr);
- Jim_IncrRefCount(bodyObjPtr);
- cmdPtr->arityMin = arityMin;
- cmdPtr->arityMax = arityMax;
- cmdPtr->staticVars = NULL;
-
- /* Create the statics hash table. */
- if (staticsListObjPtr) {
- int len, i;
-
- Jim_ListLength(interp, staticsListObjPtr, &len);
- if (len != 0) {
- cmdPtr->staticVars = Jim_Alloc(sizeof(Jim_HashTable));
- Jim_InitHashTable(cmdPtr->staticVars, getJimVariablesHashTableType(),
- interp);
- for (i = 0; i < len; i++) {
- Jim_Obj *objPtr=NULL, *initObjPtr=NULL, *nameObjPtr=NULL;
- Jim_Var *varPtr;
- int subLen;
-
- Jim_ListIndex(interp, staticsListObjPtr, i, &objPtr, JIM_NONE);
- /* Check if it's composed of two elements. */
- Jim_ListLength(interp, objPtr, &subLen);
- if (subLen == 1 || subLen == 2) {
- /* Try to get the variable value from the current
- * environment. */
- Jim_ListIndex(interp, objPtr, 0, &nameObjPtr, JIM_NONE);
- if (subLen == 1) {
- initObjPtr = Jim_GetVariable(interp, nameObjPtr,
- JIM_NONE);
- if (initObjPtr == NULL) {
- Jim_SetResult(interp,
- Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "variable for initialization of static \"",
- Jim_GetString(nameObjPtr, NULL),
- "\" not found in the local context",
- NULL);
- goto err;
- }
- } else {
- Jim_ListIndex(interp, objPtr, 1, &initObjPtr, JIM_NONE);
- }
- varPtr = Jim_Alloc(sizeof(*varPtr));
- varPtr->objPtr = initObjPtr;
- Jim_IncrRefCount(initObjPtr);
- varPtr->linkFramePtr = NULL;
- if (Jim_AddHashEntry(cmdPtr->staticVars,
- Jim_GetString(nameObjPtr, NULL),
- varPtr) != JIM_OK)
- {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "static variable name \"",
- Jim_GetString(objPtr, NULL), "\"",
- " duplicated in statics list", NULL);
- Jim_DecrRefCount(interp, initObjPtr);
- Jim_Free(varPtr);
- goto err;
- }
- } else {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "too many fields in static specifier \"",
- objPtr, "\"", NULL);
- goto err;
- }
- }
- }
- }
-
- /* Add the new command */
-
- /* it may already exist, so we try to delete the old one */
- if (Jim_DeleteHashEntry(&interp->commands, cmdName) != JIM_ERR) {
- /* There was an old procedure with the same name, this requires
- * a 'proc epoch' update. */
- Jim_InterpIncrProcEpoch(interp);
- }
- /* If a procedure with the same name didn't existed there is no need
- * to increment the 'proc epoch' because creation of a new procedure
- * can never affect existing cached commands. We don't do
- * negative caching. */
- Jim_AddHashEntry(&interp->commands, cmdName, cmdPtr);
- return JIM_OK;
-
-err:
- Jim_FreeHashTable(cmdPtr->staticVars);
- Jim_Free(cmdPtr->staticVars);
- Jim_DecrRefCount(interp, argListObjPtr);
- Jim_DecrRefCount(interp, bodyObjPtr);
- Jim_Free(cmdPtr);
- return JIM_ERR;
-}
-
-int Jim_DeleteCommand(Jim_Interp *interp, const char *cmdName)
-{
- if (Jim_DeleteHashEntry(&interp->commands, cmdName) == JIM_ERR)
- return JIM_ERR;
- Jim_InterpIncrProcEpoch(interp);
- return JIM_OK;
-}
-
-int Jim_RenameCommand(Jim_Interp *interp, const char *oldName,
- const char *newName)
-{
- Jim_Cmd *cmdPtr;
- Jim_HashEntry *he;
- Jim_Cmd *copyCmdPtr;
-
- if (newName[0] == '\0') /* Delete! */
- return Jim_DeleteCommand(interp, oldName);
- /* Rename */
- he = Jim_FindHashEntry(&interp->commands, oldName);
- if (he == NULL)
- return JIM_ERR; /* Invalid command name */
- cmdPtr = he->val;
- copyCmdPtr = Jim_Alloc(sizeof(Jim_Cmd));
- *copyCmdPtr = *cmdPtr;
- /* In order to avoid that a procedure will get arglist/body/statics
- * freed by the hash table methods, fake a C-coded command
- * setting cmdPtr->cmdProc as not NULL */
- cmdPtr->cmdProc = (void*)1;
- /* Also make sure delProc is NULL. */
- cmdPtr->delProc = NULL;
- /* Destroy the old command, and make sure the new is freed
- * as well. */
- Jim_DeleteHashEntry(&interp->commands, oldName);
- Jim_DeleteHashEntry(&interp->commands, newName);
- /* Now the new command. We are sure it can't fail because
- * the target name was already freed. */
- Jim_AddHashEntry(&interp->commands, newName, copyCmdPtr);
- /* Increment the epoch */
- Jim_InterpIncrProcEpoch(interp);
- return JIM_OK;
-}
-
-/* -----------------------------------------------------------------------------
- * Command object
- * ---------------------------------------------------------------------------*/
-
-static int SetCommandFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
-
-static Jim_ObjType commandObjType = {
- "command",
- NULL,
- NULL,
- NULL,
- JIM_TYPE_REFERENCES,
-};
-
-int SetCommandFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- Jim_HashEntry *he;
- const char *cmdName;
-
- /* Get the string representation */
- cmdName = Jim_GetString(objPtr, NULL);
- /* Lookup this name into the commands hash table */
- he = Jim_FindHashEntry(&interp->commands, cmdName);
- if (he == NULL)
- return JIM_ERR;
-
- /* Free the old internal repr and set the new one. */
- Jim_FreeIntRep(interp, objPtr);
- objPtr->typePtr = &commandObjType;
- objPtr->internalRep.cmdValue.procEpoch = interp->procEpoch;
- objPtr->internalRep.cmdValue.cmdPtr = (void*)he->val;
- return JIM_OK;
-}
-
-/* This function returns the command structure for the command name
- * stored in objPtr. It tries to specialize the objPtr to contain
- * a cached info instead to perform the lookup into the hash table
- * every time. The information cached may not be uptodate, in such
- * a case the lookup is performed and the cache updated. */
-Jim_Cmd *Jim_GetCommand(Jim_Interp *interp, Jim_Obj *objPtr, int flags)
-{
- if ((objPtr->typePtr != &commandObjType ||
- objPtr->internalRep.cmdValue.procEpoch != interp->procEpoch) &&
- SetCommandFromAny(interp, objPtr) == JIM_ERR) {
- if (flags & JIM_ERRMSG) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "invalid command name \"", objPtr->bytes, "\"",
- NULL);
- }
- return NULL;
- }
- return objPtr->internalRep.cmdValue.cmdPtr;
-}
-
-/* -----------------------------------------------------------------------------
- * Variables
- * ---------------------------------------------------------------------------*/
-
-/* Variables HashTable Type.
- *
- * Keys are dynamic allocated strings, Values are Jim_Var structures. */
-static void JimVariablesHTValDestructor(void *interp, void *val)
-{
- Jim_Var *varPtr = (void*) val;
-
- Jim_DecrRefCount(interp, varPtr->objPtr);
- Jim_Free(val);
-}
-
-static Jim_HashTableType JimVariablesHashTableType = {
- JimStringCopyHTHashFunction, /* hash function */
- JimStringCopyHTKeyDup, /* key dup */
- NULL, /* val dup */
- JimStringCopyHTKeyCompare, /* key compare */
- JimStringCopyHTKeyDestructor, /* key destructor */
- JimVariablesHTValDestructor /* val destructor */
-};
-
-static Jim_HashTableType *getJimVariablesHashTableType(void)
-{
- return &JimVariablesHashTableType;
-}
-
-/* -----------------------------------------------------------------------------
- * Variable object
- * ---------------------------------------------------------------------------*/
-
-#define JIM_DICT_SUGAR 100 /* Only returned by SetVariableFromAny() */
-
-static int SetVariableFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
-
-static Jim_ObjType variableObjType = {
- "variable",
- NULL,
- NULL,
- NULL,
- JIM_TYPE_REFERENCES,
-};
-
-/* Return true if the string "str" looks like syntax sugar for [dict]. I.e.
- * is in the form "varname(key)". */
-static int Jim_NameIsDictSugar(const char *str, int len)
-{
- if (len == -1)
- len = strlen(str);
- if (len && str[len-1] == ')' && strchr(str, '(') != NULL)
- return 1;
- return 0;
-}
-
-/* This method should be called only by the variable API.
- * It returns JIM_OK on success (variable already exists),
- * JIM_ERR if it does not exists, JIM_DICT_GLUE if it's not
- * a variable name, but syntax glue for [dict] i.e. the last
- * character is ')' */
-int SetVariableFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr)
-{
- Jim_HashEntry *he;
- const char *varName;
- int len;
-
- /* Check if the object is already an uptodate variable */
- if (objPtr->typePtr == &variableObjType &&
- objPtr->internalRep.varValue.callFrameId == interp->framePtr->id)
- return JIM_OK; /* nothing to do */
- /* Get the string representation */
- varName = Jim_GetString(objPtr, &len);
- /* Make sure it's not syntax glue to get/set dict. */
- if (Jim_NameIsDictSugar(varName, len))
- return JIM_DICT_SUGAR;
- if (varName[0] == ':' && varName[1] == ':') {
- he = Jim_FindHashEntry(&interp->topFramePtr->vars, varName + 2);
- if (he == NULL) {
- return JIM_ERR;
- }
- }
- else {
- /* Lookup this name into the variables hash table */
- he = Jim_FindHashEntry(&interp->framePtr->vars, varName);
- if (he == NULL) {
- /* Try with static vars. */
- if (interp->framePtr->staticVars == NULL)
- return JIM_ERR;
- if (!(he = Jim_FindHashEntry(interp->framePtr->staticVars, varName)))
- return JIM_ERR;
- }
- }
- /* Free the old internal repr and set the new one. */
- Jim_FreeIntRep(interp, objPtr);
- objPtr->typePtr = &variableObjType;
- objPtr->internalRep.varValue.callFrameId = interp->framePtr->id;
- objPtr->internalRep.varValue.varPtr = (void*)he->val;
- return JIM_OK;
-}
-
-/* -------------------- Variables related functions ------------------------- */
-static int JimDictSugarSet(Jim_Interp *interp, Jim_Obj *ObjPtr,
- Jim_Obj *valObjPtr);
-static Jim_Obj *JimDictSugarGet(Jim_Interp *interp, Jim_Obj *ObjPtr);
-
-/* For now that's dummy. Variables lookup should be optimized
- * in many ways, with caching of lookups, and possibly with
- * a table of pre-allocated vars in every CallFrame for local vars.
- * All the caching should also have an 'epoch' mechanism similar
- * to the one used by Tcl for procedures lookup caching. */
-
-int Jim_SetVariable(Jim_Interp *interp, Jim_Obj *nameObjPtr, Jim_Obj *valObjPtr)
-{
- const char *name;
- Jim_Var *var;
- int err;
-
- if ((err = SetVariableFromAny(interp, nameObjPtr)) != JIM_OK) {
- /* Check for [dict] syntax sugar. */
- if (err == JIM_DICT_SUGAR)
- return JimDictSugarSet(interp, nameObjPtr, valObjPtr);
- /* New variable to create */
- name = Jim_GetString(nameObjPtr, NULL);
-
- var = Jim_Alloc(sizeof(*var));
- var->objPtr = valObjPtr;
- Jim_IncrRefCount(valObjPtr);
- var->linkFramePtr = NULL;
- /* Insert the new variable */
- if (name[0] == ':' && name[1] == ':') {
- /* Into to the top evel frame */
- Jim_AddHashEntry(&interp->topFramePtr->vars, name + 2, var);
- }
- else {
- Jim_AddHashEntry(&interp->framePtr->vars, name, var);
- }
- /* Make the object int rep a variable */
- Jim_FreeIntRep(interp, nameObjPtr);
- nameObjPtr->typePtr = &variableObjType;
- nameObjPtr->internalRep.varValue.callFrameId =
- interp->framePtr->id;
- nameObjPtr->internalRep.varValue.varPtr = var;
- } else {
- var = nameObjPtr->internalRep.varValue.varPtr;
- if (var->linkFramePtr == NULL) {
- Jim_IncrRefCount(valObjPtr);
- Jim_DecrRefCount(interp, var->objPtr);
- var->objPtr = valObjPtr;
- } else { /* Else handle the link */
- Jim_CallFrame *savedCallFrame;
-
- savedCallFrame = interp->framePtr;
- interp->framePtr = var->linkFramePtr;
- err = Jim_SetVariable(interp, var->objPtr, valObjPtr);
- interp->framePtr = savedCallFrame;
- if (err != JIM_OK)
- return err;
- }
- }
- return JIM_OK;
-}
-
-int Jim_SetVariableStr(Jim_Interp *interp, const char *name, Jim_Obj *objPtr)
-{
- Jim_Obj *nameObjPtr;
- int result;
-
- nameObjPtr = Jim_NewStringObj(interp, name, -1);
- Jim_IncrRefCount(nameObjPtr);
- result = Jim_SetVariable(interp, nameObjPtr, objPtr);
- Jim_DecrRefCount(interp, nameObjPtr);
- return result;
-}
-
-int Jim_SetGlobalVariableStr(Jim_Interp *interp, const char *name, Jim_Obj *objPtr)
-{
- Jim_CallFrame *savedFramePtr;
- int result;
-
- savedFramePtr = interp->framePtr;
- interp->framePtr = interp->topFramePtr;
- result = Jim_SetVariableStr(interp, name, objPtr);
- interp->framePtr = savedFramePtr;
- return result;
-}
-
-int Jim_SetVariableStrWithStr(Jim_Interp *interp, const char *name, const char *val)
-{
- Jim_Obj *nameObjPtr, *valObjPtr;
- int result;
-
- nameObjPtr = Jim_NewStringObj(interp, name, -1);
- valObjPtr = Jim_NewStringObj(interp, val, -1);
- Jim_IncrRefCount(nameObjPtr);
- Jim_IncrRefCount(valObjPtr);
- result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
- Jim_DecrRefCount(interp, nameObjPtr);
- Jim_DecrRefCount(interp, valObjPtr);
- return result;
-}
-
-int Jim_SetVariableLink(Jim_Interp *interp, Jim_Obj *nameObjPtr,
- Jim_Obj *targetNameObjPtr, Jim_CallFrame *targetCallFrame)
-{
- const char *varName;
- int len;
-
- /* Check for cycles. */
- if (interp->framePtr == targetCallFrame) {
- Jim_Obj *objPtr = targetNameObjPtr;
- Jim_Var *varPtr;
- /* Cycles are only possible with 'uplevel 0' */
- while (1) {
- if (Jim_StringEqObj(objPtr, nameObjPtr, 0)) {
- Jim_SetResultString(interp,
- "can't upvar from variable to itself", -1);
- return JIM_ERR;
- }
- if (SetVariableFromAny(interp, objPtr) != JIM_OK)
- break;
- varPtr = objPtr->internalRep.varValue.varPtr;
- if (varPtr->linkFramePtr != targetCallFrame) break;
- objPtr = varPtr->objPtr;
- }
- }
- varName = Jim_GetString(nameObjPtr, &len);
- if (Jim_NameIsDictSugar(varName, len)) {
- Jim_SetResultString(interp,
- "Dict key syntax invalid as link source", -1);
- return JIM_ERR;
- }
- /* Perform the binding */
- Jim_SetVariable(interp, nameObjPtr, targetNameObjPtr);
- /* We are now sure 'nameObjPtr' type is variableObjType */
- nameObjPtr->internalRep.varValue.varPtr->linkFramePtr = targetCallFrame;
- return JIM_OK;
-}
-
-/* Return the Jim_Obj pointer associated with a variable name,
- * or NULL if the variable was not found in the current context.
- * The same optimization discussed in the comment to the
- * 'SetVariable' function should apply here. */
-Jim_Obj *Jim_GetVariable(Jim_Interp *interp, Jim_Obj *nameObjPtr, int flags)
-{
- int err;
-
- /* All the rest is handled here */
- if ((err = SetVariableFromAny(interp, nameObjPtr)) != JIM_OK) {
- /* Check for [dict] syntax sugar. */
- if (err == JIM_DICT_SUGAR)
- return JimDictSugarGet(interp, nameObjPtr);
- if (flags & JIM_ERRMSG) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "can't read \"", nameObjPtr->bytes,
- "\": no such variable", NULL);
- }
- return NULL;
- } else {
- Jim_Var *varPtr;
- Jim_Obj *objPtr;
- Jim_CallFrame *savedCallFrame;
-
- varPtr = nameObjPtr->internalRep.varValue.varPtr;
- if (varPtr->linkFramePtr == NULL)
- return varPtr->objPtr;
- /* The variable is a link? Resolve it. */
- savedCallFrame = interp->framePtr;
- interp->framePtr = varPtr->linkFramePtr;
- objPtr = Jim_GetVariable(interp, varPtr->objPtr, JIM_NONE);
- if (objPtr == NULL && flags & JIM_ERRMSG) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "can't read \"", nameObjPtr->bytes,
- "\": no such variable", NULL);
- }
- interp->framePtr = savedCallFrame;
- return objPtr;
- }
-}
-
-Jim_Obj *Jim_GetGlobalVariable(Jim_Interp *interp, Jim_Obj *nameObjPtr,
- int flags)
-{
- Jim_CallFrame *savedFramePtr;
- Jim_Obj *objPtr;
-
- savedFramePtr = interp->framePtr;
- interp->framePtr = interp->topFramePtr;
- objPtr = Jim_GetVariable(interp, nameObjPtr, flags);
- interp->framePtr = savedFramePtr;
-
- return objPtr;
-}
-
-Jim_Obj *Jim_GetVariableStr(Jim_Interp *interp, const char *name, int flags)
-{
- Jim_Obj *nameObjPtr, *varObjPtr;
-
- nameObjPtr = Jim_NewStringObj(interp, name, -1);
- Jim_IncrRefCount(nameObjPtr);
- varObjPtr = Jim_GetVariable(interp, nameObjPtr, flags);
- Jim_DecrRefCount(interp, nameObjPtr);
- return varObjPtr;
-}
-
-Jim_Obj *Jim_GetGlobalVariableStr(Jim_Interp *interp, const char *name,
- int flags)
-{
- Jim_CallFrame *savedFramePtr;
- Jim_Obj *objPtr;
-
- savedFramePtr = interp->framePtr;
- interp->framePtr = interp->topFramePtr;
- objPtr = Jim_GetVariableStr(interp, name, flags);
- interp->framePtr = savedFramePtr;
-
- return objPtr;
-}
-
-/* Unset a variable.
- * Note: On success unset invalidates all the variable objects created
- * in the current call frame incrementing. */
-int Jim_UnsetVariable(Jim_Interp *interp, Jim_Obj *nameObjPtr, int flags)
-{
- const char *name;
- Jim_Var *varPtr;
- int err;
-
- if ((err = SetVariableFromAny(interp, nameObjPtr)) != JIM_OK) {
- /* Check for [dict] syntax sugar. */
- if (err == JIM_DICT_SUGAR)
- return JimDictSugarSet(interp, nameObjPtr, NULL);
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "can't unset \"", nameObjPtr->bytes,
- "\": no such variable", NULL);
- return JIM_ERR; /* var not found */
- }
- varPtr = nameObjPtr->internalRep.varValue.varPtr;
- /* If it's a link call UnsetVariable recursively */
- if (varPtr->linkFramePtr) {
- int retval;
-
- Jim_CallFrame *savedCallFrame;
-
- savedCallFrame = interp->framePtr;
- interp->framePtr = varPtr->linkFramePtr;
- retval = Jim_UnsetVariable(interp, varPtr->objPtr, JIM_NONE);
- interp->framePtr = savedCallFrame;
- if (retval != JIM_OK && flags & JIM_ERRMSG) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "can't unset \"", nameObjPtr->bytes,
- "\": no such variable", NULL);
- }
- return retval;
- } else {
- name = Jim_GetString(nameObjPtr, NULL);
- if (Jim_DeleteHashEntry(&interp->framePtr->vars, name)
- != JIM_OK) return JIM_ERR;
- /* Change the callframe id, invalidating var lookup caching */
- JimChangeCallFrameId(interp, interp->framePtr);
- return JIM_OK;
- }
-}
-
-/* ---------- Dict syntax sugar (similar to array Tcl syntax) -------------- */
-
-/* Given a variable name for [dict] operation syntax sugar,
- * this function returns two objects, the first with the name
- * of the variable to set, and the second with the rispective key.
- * For example "foo(bar)" will return objects with string repr. of
- * "foo" and "bar".
- *
- * The returned objects have refcount = 1. The function can't fail. */
-static void JimDictSugarParseVarKey(Jim_Interp *interp, Jim_Obj *objPtr,
- Jim_Obj **varPtrPtr, Jim_Obj **keyPtrPtr)
-{
- const char *str, *p;
- char *t;
- int len, keyLen, nameLen;
- Jim_Obj *varObjPtr, *keyObjPtr;
-
- str = Jim_GetString(objPtr, &len);
- p = strchr(str, '(');
- p++;
- keyLen = len-((p-str) + 1);
- nameLen = (p-str)-1;
- /* Create the objects with the variable name and key. */
- t = Jim_Alloc(nameLen + 1);
- memcpy(t, str, nameLen);
- t[nameLen] = '\0';
- varObjPtr = Jim_NewStringObjNoAlloc(interp, t, nameLen);
-
- t = Jim_Alloc(keyLen + 1);
- memcpy(t, p, keyLen);
- t[keyLen] = '\0';
- keyObjPtr = Jim_NewStringObjNoAlloc(interp, t, keyLen);
-
- Jim_IncrRefCount(varObjPtr);
- Jim_IncrRefCount(keyObjPtr);
- *varPtrPtr = varObjPtr;
- *keyPtrPtr = keyObjPtr;
-}
-
-/* Helper of Jim_SetVariable() to deal with dict-syntax variable names.
- * Also used by Jim_UnsetVariable() with valObjPtr = NULL. */
-static int JimDictSugarSet(Jim_Interp *interp, Jim_Obj *objPtr,
- Jim_Obj *valObjPtr)
-{
- Jim_Obj *varObjPtr, *keyObjPtr;
- int err = JIM_OK;
-
- JimDictSugarParseVarKey(interp, objPtr, &varObjPtr, &keyObjPtr);
- err = Jim_SetDictKeysVector(interp, varObjPtr, &keyObjPtr, 1,
- valObjPtr);
- Jim_DecrRefCount(interp, varObjPtr);
- Jim_DecrRefCount(interp, keyObjPtr);
- return err;
-}
-
-/* Helper of Jim_GetVariable() to deal with dict-syntax variable names */
-static Jim_Obj *JimDictSugarGet(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- Jim_Obj *varObjPtr, *keyObjPtr, *dictObjPtr, *resObjPtr;
-
- JimDictSugarParseVarKey(interp, objPtr, &varObjPtr, &keyObjPtr);
- dictObjPtr = Jim_GetVariable(interp, varObjPtr, JIM_ERRMSG);
- if (!dictObjPtr) {
- resObjPtr = NULL;
- goto err;
- }
- if (Jim_DictKey(interp, dictObjPtr, keyObjPtr, &resObjPtr, JIM_ERRMSG)
- != JIM_OK) {
- resObjPtr = NULL;
- }
-err:
- Jim_DecrRefCount(interp, varObjPtr);
- Jim_DecrRefCount(interp, keyObjPtr);
- return resObjPtr;
-}
-
-/* --------- $var(INDEX) substitution, using a specialized object ----------- */
-
-static void FreeDictSubstInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
-static void DupDictSubstInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr,
- Jim_Obj *dupPtr);
-
-static Jim_ObjType dictSubstObjType = {
- "dict-substitution",
- FreeDictSubstInternalRep,
- DupDictSubstInternalRep,
- NULL,
- JIM_TYPE_NONE,
-};
-
-void FreeDictSubstInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- Jim_DecrRefCount(interp, objPtr->internalRep.dictSubstValue.varNameObjPtr);
- Jim_DecrRefCount(interp, objPtr->internalRep.dictSubstValue.indexObjPtr);
-}
-
-void DupDictSubstInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr,
- Jim_Obj *dupPtr)
-{
- JIM_NOTUSED(interp);
-
- dupPtr->internalRep.dictSubstValue.varNameObjPtr =
- srcPtr->internalRep.dictSubstValue.varNameObjPtr;
- dupPtr->internalRep.dictSubstValue.indexObjPtr =
- srcPtr->internalRep.dictSubstValue.indexObjPtr;
- dupPtr->typePtr = &dictSubstObjType;
-}
-
-/* This function is used to expand [dict get] sugar in the form
- * of $var(INDEX). The function is mainly used by Jim_EvalObj()
- * to deal with tokens of type JIM_TT_DICTSUGAR. objPtr points to an
- * object that is *guaranteed* to be in the form VARNAME(INDEX).
- * The 'index' part is [subst]ituted, and is used to lookup a key inside
- * the [dict]ionary contained in variable VARNAME. */
-Jim_Obj *Jim_ExpandDictSugar(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- Jim_Obj *varObjPtr, *keyObjPtr, *dictObjPtr, *resObjPtr;
- Jim_Obj *substKeyObjPtr = NULL;
-
- if (objPtr->typePtr != &dictSubstObjType) {
- JimDictSugarParseVarKey(interp, objPtr, &varObjPtr, &keyObjPtr);
- Jim_FreeIntRep(interp, objPtr);
- objPtr->typePtr = &dictSubstObjType;
- objPtr->internalRep.dictSubstValue.varNameObjPtr = varObjPtr;
- objPtr->internalRep.dictSubstValue.indexObjPtr = keyObjPtr;
- }
- if (Jim_SubstObj(interp, objPtr->internalRep.dictSubstValue.indexObjPtr,
- &substKeyObjPtr, JIM_NONE)
- != JIM_OK) {
- substKeyObjPtr = NULL;
- goto err;
- }
- Jim_IncrRefCount(substKeyObjPtr);
- dictObjPtr = Jim_GetVariable(interp,
- objPtr->internalRep.dictSubstValue.varNameObjPtr, JIM_ERRMSG);
- if (!dictObjPtr) {
- resObjPtr = NULL;
- goto err;
- }
- if (Jim_DictKey(interp, dictObjPtr, substKeyObjPtr, &resObjPtr, JIM_ERRMSG)
- != JIM_OK) {
- resObjPtr = NULL;
- goto err;
- }
-err:
- if (substKeyObjPtr) Jim_DecrRefCount(interp, substKeyObjPtr);
- return resObjPtr;
-}
-
-/* -----------------------------------------------------------------------------
- * CallFrame
- * ---------------------------------------------------------------------------*/
-
-static Jim_CallFrame *JimCreateCallFrame(Jim_Interp *interp)
-{
- Jim_CallFrame *cf;
- if (interp->freeFramesList) {
- cf = interp->freeFramesList;
- interp->freeFramesList = cf->nextFramePtr;
- } else {
- cf = Jim_Alloc(sizeof(*cf));
- cf->vars.table = NULL;
- }
-
- cf->id = interp->callFrameEpoch++;
- cf->parentCallFrame = NULL;
- cf->argv = NULL;
- cf->argc = 0;
- cf->procArgsObjPtr = NULL;
- cf->procBodyObjPtr = NULL;
- cf->nextFramePtr = NULL;
- cf->staticVars = NULL;
- if (cf->vars.table == NULL)
- Jim_InitHashTable(&cf->vars, &JimVariablesHashTableType, interp);
- return cf;
-}
-
-/* Used to invalidate every caching related to callframe stability. */
-static void JimChangeCallFrameId(Jim_Interp *interp, Jim_CallFrame *cf)
-{
- cf->id = interp->callFrameEpoch++;
-}
-
-#define JIM_FCF_NONE 0 /* no flags */
-#define JIM_FCF_NOHT 1 /* don't free the hash table */
-static void JimFreeCallFrame(Jim_Interp *interp, Jim_CallFrame *cf,
- int flags)
-{
- if (cf->procArgsObjPtr) Jim_DecrRefCount(interp, cf->procArgsObjPtr);
- if (cf->procBodyObjPtr) Jim_DecrRefCount(interp, cf->procBodyObjPtr);
- if (!(flags & JIM_FCF_NOHT))
- Jim_FreeHashTable(&cf->vars);
- else {
- int i;
- Jim_HashEntry **table = cf->vars.table, *he;
-
- for (i = 0; i < JIM_HT_INITIAL_SIZE; i++) {
- he = table[i];
- while (he != NULL) {
- Jim_HashEntry *nextEntry = he->next;
- Jim_Var *varPtr = (void*) he->val;
-
- Jim_DecrRefCount(interp, varPtr->objPtr);
- Jim_Free(he->val);
- Jim_Free((void*)he->key); /* ATTENTION: const cast */
- Jim_Free(he);
- table[i] = NULL;
- he = nextEntry;
- }
- }
- cf->vars.used = 0;
- }
- cf->nextFramePtr = interp->freeFramesList;
- interp->freeFramesList = cf;
-}
-
-/* -----------------------------------------------------------------------------
- * References
- * ---------------------------------------------------------------------------*/
-
-/* References HashTable Type.
- *
- * Keys are jim_wide integers, dynamically allocated for now but in the
- * future it's worth to cache this 8 bytes objects. Values are poitners
- * to Jim_References. */
-static void JimReferencesHTValDestructor(void *interp, void *val)
-{
- Jim_Reference *refPtr = (void*) val;
-
- Jim_DecrRefCount(interp, refPtr->objPtr);
- if (refPtr->finalizerCmdNamePtr != NULL) {
- Jim_DecrRefCount(interp, refPtr->finalizerCmdNamePtr);
- }
- Jim_Free(val);
-}
-
-unsigned int JimReferencesHTHashFunction(const void *key)
-{
- /* Only the least significant bits are used. */
- const jim_wide *widePtr = key;
- unsigned int intValue = (unsigned int) *widePtr;
- return Jim_IntHashFunction(intValue);
-}
-
-unsigned int JimReferencesHTDoubleHashFunction(const void *key)
-{
- /* Only the least significant bits are used. */
- const jim_wide *widePtr = key;
- unsigned int intValue = (unsigned int) *widePtr;
- return intValue; /* identity function. */
-}
-
-const void *JimReferencesHTKeyDup(void *privdata, const void *key)
-{
- void *copy = Jim_Alloc(sizeof(jim_wide));
- JIM_NOTUSED(privdata);
-
- memcpy(copy, key, sizeof(jim_wide));
- return copy;
-}
-
-int JimReferencesHTKeyCompare(void *privdata, const void *key1,
- const void *key2)
-{
- JIM_NOTUSED(privdata);
-
- return memcmp(key1, key2, sizeof(jim_wide)) == 0;
-}
-
-void JimReferencesHTKeyDestructor(void *privdata, const void *key)
-{
- JIM_NOTUSED(privdata);
-
- Jim_Free((void*)key);
-}
-
-static Jim_HashTableType JimReferencesHashTableType = {
- JimReferencesHTHashFunction, /* hash function */
- JimReferencesHTKeyDup, /* key dup */
- NULL, /* val dup */
- JimReferencesHTKeyCompare, /* key compare */
- JimReferencesHTKeyDestructor, /* key destructor */
- JimReferencesHTValDestructor /* val destructor */
-};
-
-/* -----------------------------------------------------------------------------
- * Reference object type and References API
- * ---------------------------------------------------------------------------*/
-
-static void UpdateStringOfReference(struct Jim_Obj *objPtr);
-
-static Jim_ObjType referenceObjType = {
- "reference",
- NULL,
- NULL,
- UpdateStringOfReference,
- JIM_TYPE_REFERENCES,
-};
-
-void UpdateStringOfReference(struct Jim_Obj *objPtr)
-{
- int len;
- char buf[JIM_REFERENCE_SPACE + 1];
- Jim_Reference *refPtr;
-
- refPtr = objPtr->internalRep.refValue.refPtr;
- len = JimFormatReference(buf, refPtr, objPtr->internalRep.refValue.id);
- objPtr->bytes = Jim_Alloc(len + 1);
- memcpy(objPtr->bytes, buf, len + 1);
- objPtr->length = len;
-}
-
-/* returns true if 'c' is a valid reference tag character.
- * i.e. inside the range [_a-zA-Z0-9] */
-static int isrefchar(int c)
-{
- if (c == '_' || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
- (c >= '0' && c <= '9')) return 1;
- return 0;
-}
-
-int SetReferenceFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- jim_wide wideValue;
- int i, len;
- const char *str, *start, *end;
- char refId[21];
- Jim_Reference *refPtr;
- Jim_HashEntry *he;
-
- /* Get the string representation */
- str = Jim_GetString(objPtr, &len);
- /* Check if it looks like a reference */
- if (len < JIM_REFERENCE_SPACE) goto badformat;
- /* Trim spaces */
- start = str;
- end = str + len-1;
- while (*start == ' ') start++;
- while (*end == ' ' && end > start) end--;
- if (end-start + 1 != JIM_REFERENCE_SPACE) goto badformat;
- /* <reference.<1234567>.%020> */
- if (memcmp(start, "<reference.<", 12) != 0) goto badformat;
- if (start[12 + JIM_REFERENCE_TAGLEN] != '>' || end[0] != '>') goto badformat;
- /* The tag can't contain chars other than a-zA-Z0-9 + '_'. */
- for (i = 0; i < JIM_REFERENCE_TAGLEN; i++) {
- if (!isrefchar(start[12 + i])) goto badformat;
- }
- /* Extract info from the refernece. */
- memcpy(refId, start + 14 + JIM_REFERENCE_TAGLEN, 20);
- refId[20] = '\0';
- /* Try to convert the ID into a jim_wide */
- if (Jim_StringToWide(refId, &wideValue, 10) != JIM_OK) goto badformat;
- /* Check if the reference really exists! */
- he = Jim_FindHashEntry(&interp->references, &wideValue);
- if (he == NULL) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "Invalid reference ID \"", str, "\"", NULL);
- return JIM_ERR;
- }
- refPtr = he->val;
- /* Free the old internal repr and set the new one. */
- Jim_FreeIntRep(interp, objPtr);
- objPtr->typePtr = &referenceObjType;
- objPtr->internalRep.refValue.id = wideValue;
- objPtr->internalRep.refValue.refPtr = refPtr;
- return JIM_OK;
-
-badformat:
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "expected reference but got \"", str, "\"", NULL);
- return JIM_ERR;
-}
-
-/* Returns a new reference pointing to objPtr, having cmdNamePtr
- * as finalizer command (or NULL if there is no finalizer).
- * The returned reference object has refcount = 0. */
-Jim_Obj *Jim_NewReference(Jim_Interp *interp, Jim_Obj *objPtr, Jim_Obj *tagPtr,
- Jim_Obj *cmdNamePtr)
-{
- struct Jim_Reference *refPtr;
- jim_wide wideValue = interp->referenceNextId;
- Jim_Obj *refObjPtr;
- const char *tag;
- int tagLen, i;
-
- /* Perform the Garbage Collection if needed. */
- Jim_CollectIfNeeded(interp);
-
- refPtr = Jim_Alloc(sizeof(*refPtr));
- refPtr->objPtr = objPtr;
- Jim_IncrRefCount(objPtr);
- refPtr->finalizerCmdNamePtr = cmdNamePtr;
- if (cmdNamePtr)
- Jim_IncrRefCount(cmdNamePtr);
- Jim_AddHashEntry(&interp->references, &wideValue, refPtr);
- refObjPtr = Jim_NewObj(interp);
- refObjPtr->typePtr = &referenceObjType;
- refObjPtr->bytes = NULL;
- refObjPtr->internalRep.refValue.id = interp->referenceNextId;
- refObjPtr->internalRep.refValue.refPtr = refPtr;
- interp->referenceNextId++;
- /* Set the tag. Trimmered at JIM_REFERENCE_TAGLEN. Everything
- * that does not pass the 'isrefchar' test is replaced with '_' */
- tag = Jim_GetString(tagPtr, &tagLen);
- if (tagLen > JIM_REFERENCE_TAGLEN)
- tagLen = JIM_REFERENCE_TAGLEN;
- for (i = 0; i < JIM_REFERENCE_TAGLEN; i++) {
- if (i < tagLen)
- refPtr->tag[i] = tag[i];
- else
- refPtr->tag[i] = '_';
- }
- refPtr->tag[JIM_REFERENCE_TAGLEN] = '\0';
- return refObjPtr;
-}
-
-Jim_Reference *Jim_GetReference(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- if (objPtr->typePtr != &referenceObjType &&
- SetReferenceFromAny(interp, objPtr) == JIM_ERR)
- return NULL;
- return objPtr->internalRep.refValue.refPtr;
-}
-
-int Jim_SetFinalizer(Jim_Interp *interp, Jim_Obj *objPtr, Jim_Obj *cmdNamePtr)
-{
- Jim_Reference *refPtr;
-
- if ((refPtr = Jim_GetReference(interp, objPtr)) == NULL)
- return JIM_ERR;
- Jim_IncrRefCount(cmdNamePtr);
- if (refPtr->finalizerCmdNamePtr)
- Jim_DecrRefCount(interp, refPtr->finalizerCmdNamePtr);
- refPtr->finalizerCmdNamePtr = cmdNamePtr;
- return JIM_OK;
-}
-
-int Jim_GetFinalizer(Jim_Interp *interp, Jim_Obj *objPtr, Jim_Obj **cmdNamePtrPtr)
-{
- Jim_Reference *refPtr;
-
- if ((refPtr = Jim_GetReference(interp, objPtr)) == NULL)
- return JIM_ERR;
- *cmdNamePtrPtr = refPtr->finalizerCmdNamePtr;
- return JIM_OK;
-}
-
-/* -----------------------------------------------------------------------------
- * References Garbage Collection
- * ---------------------------------------------------------------------------*/
-
-/* This the hash table type for the "MARK" phase of the GC */
-static Jim_HashTableType JimRefMarkHashTableType = {
- JimReferencesHTHashFunction, /* hash function */
- JimReferencesHTKeyDup, /* key dup */
- NULL, /* val dup */
- JimReferencesHTKeyCompare, /* key compare */
- JimReferencesHTKeyDestructor, /* key destructor */
- NULL /* val destructor */
-};
-
-/* #define JIM_DEBUG_GC 1 */
-
-/* Performs the garbage collection. */
-int Jim_Collect(Jim_Interp *interp)
-{
- Jim_HashTable marks;
- Jim_HashTableIterator *htiter;
- Jim_HashEntry *he;
- Jim_Obj *objPtr;
- int collected = 0;
-
- /* Avoid recursive calls */
- if (interp->lastCollectId == -1) {
- /* Jim_Collect() already running. Return just now. */
- return 0;
- }
- interp->lastCollectId = -1;
-
- /* Mark all the references found into the 'mark' hash table.
- * The references are searched in every live object that
- * is of a type that can contain references. */
- Jim_InitHashTable(&marks, &JimRefMarkHashTableType, NULL);
- objPtr = interp->liveList;
- while (objPtr) {
- if (objPtr->typePtr == NULL ||
- objPtr->typePtr->flags & JIM_TYPE_REFERENCES) {
- const char *str, *p;
- int len;
-
- /* If the object is of type reference, to get the
- * Id is simple... */
- if (objPtr->typePtr == &referenceObjType) {
- Jim_AddHashEntry(&marks,
- &objPtr->internalRep.refValue.id, NULL);
-#ifdef JIM_DEBUG_GC
- Jim_fprintf(interp,interp->cookie_stdout,
- "MARK (reference): %d refcount: %d" JIM_NL,
- (int) objPtr->internalRep.refValue.id,
- objPtr->refCount);
-#endif
- objPtr = objPtr->nextObjPtr;
- continue;
- }
- /* Get the string repr of the object we want
- * to scan for references. */
- p = str = Jim_GetString(objPtr, &len);
- /* Skip objects too little to contain references. */
- if (len < JIM_REFERENCE_SPACE) {
- objPtr = objPtr->nextObjPtr;
- continue;
- }
- /* Extract references from the object string repr. */
- while (1) {
- int i;
- jim_wide id;
- char buf[21];
-
- if ((p = strstr(p, "<reference.<")) == NULL)
- break;
- /* Check if it's a valid reference. */
- if (len-(p-str) < JIM_REFERENCE_SPACE) break;
- if (p[41] != '>' || p[19] != '>' || p[20] != '.') break;
- for (i = 21; i <= 40; i++)
- if (!isdigit((int)p[i]))
- break;
- /* Get the ID */
- memcpy(buf, p + 21, 20);
- buf[20] = '\0';
- Jim_StringToWide(buf, &id, 10);
-
- /* Ok, a reference for the given ID
- * was found. Mark it. */
- Jim_AddHashEntry(&marks, &id, NULL);
-#ifdef JIM_DEBUG_GC
- Jim_fprintf(interp,interp->cookie_stdout,"MARK: %d" JIM_NL, (int)id);
-#endif
- p += JIM_REFERENCE_SPACE;
- }
- }
- objPtr = objPtr->nextObjPtr;
- }
-
- /* Run the references hash table to destroy every reference that
- * is not referenced outside (not present in the mark HT). */
- htiter = Jim_GetHashTableIterator(&interp->references);
- while ((he = Jim_NextHashEntry(htiter)) != NULL) {
- const jim_wide *refId;
- Jim_Reference *refPtr;
-
- refId = he->key;
- /* Check if in the mark phase we encountered
- * this reference. */
- if (Jim_FindHashEntry(&marks, refId) == NULL) {
-#ifdef JIM_DEBUG_GC
- Jim_fprintf(interp,interp->cookie_stdout,"COLLECTING %d" JIM_NL, (int)*refId);
-#endif
- collected++;
- /* Drop the reference, but call the
- * finalizer first if registered. */
- refPtr = he->val;
- if (refPtr->finalizerCmdNamePtr) {
- char *refstr = Jim_Alloc(JIM_REFERENCE_SPACE + 1);
- Jim_Obj *objv[3], *oldResult;
-
- JimFormatReference(refstr, refPtr, *refId);
-
- objv[0] = refPtr->finalizerCmdNamePtr;
- objv[1] = Jim_NewStringObjNoAlloc(interp,
- refstr, 32);
- objv[2] = refPtr->objPtr;
- Jim_IncrRefCount(objv[0]);
- Jim_IncrRefCount(objv[1]);
- Jim_IncrRefCount(objv[2]);
-
- /* Drop the reference itself */
- Jim_DeleteHashEntry(&interp->references, refId);
-
- /* Call the finalizer. Errors ignored. */
- oldResult = interp->result;
- Jim_IncrRefCount(oldResult);
- Jim_EvalObjVector(interp, 3, objv);
- Jim_SetResult(interp, oldResult);
- Jim_DecrRefCount(interp, oldResult);
-
- Jim_DecrRefCount(interp, objv[0]);
- Jim_DecrRefCount(interp, objv[1]);
- Jim_DecrRefCount(interp, objv[2]);
- } else {
- Jim_DeleteHashEntry(&interp->references, refId);
- }
- }
- }
- Jim_FreeHashTableIterator(htiter);
- Jim_FreeHashTable(&marks);
- interp->lastCollectId = interp->referenceNextId;
- interp->lastCollectTime = time(NULL);
- return collected;
-}
-
-#define JIM_COLLECT_ID_PERIOD 5000
-#define JIM_COLLECT_TIME_PERIOD 300
-
-void Jim_CollectIfNeeded(Jim_Interp *interp)
-{
- jim_wide elapsedId;
- int elapsedTime;
-
- elapsedId = interp->referenceNextId - interp->lastCollectId;
- elapsedTime = time(NULL) - interp->lastCollectTime;
-
-
- if (elapsedId > JIM_COLLECT_ID_PERIOD ||
- elapsedTime > JIM_COLLECT_TIME_PERIOD) {
- Jim_Collect(interp);
- }
-}
-
-/* -----------------------------------------------------------------------------
- * Interpreter related functions
- * ---------------------------------------------------------------------------*/
-
-Jim_Interp *Jim_CreateInterp(void)
-{
- Jim_Interp *i = Jim_Alloc(sizeof(*i));
- Jim_Obj *pathPtr;
-
- i->errorLine = 0;
- i->errorFileName = Jim_StrDup("");
- i->numLevels = 0;
- i->maxNestingDepth = JIM_MAX_NESTING_DEPTH;
- i->returnCode = JIM_OK;
- i->exitCode = 0;
- i->procEpoch = 0;
- i->callFrameEpoch = 0;
- i->liveList = i->freeList = NULL;
- i->scriptFileName = Jim_StrDup("");
- i->referenceNextId = 0;
- i->lastCollectId = 0;
- i->lastCollectTime = time(NULL);
- i->freeFramesList = NULL;
- i->prngState = NULL;
- i->evalRetcodeLevel = -1;
- i->cookie_stdin = stdin;
- i->cookie_stdout = stdout;
- i->cookie_stderr = stderr;
- i->cb_fwrite = ((size_t (*)(const void *, size_t, size_t, void *))(fwrite));
- i->cb_fread = ((size_t (*)(void *, size_t, size_t, void *))(fread));
- i->cb_vfprintf = ((int (*)(void *, const char *fmt, va_list))(vfprintf));
- i->cb_fflush = ((int (*)(void *))(fflush));
- i->cb_fgets = ((char * (*)(char *, int, void *))(fgets));
-
- /* Note that we can create objects only after the
- * interpreter liveList and freeList pointers are
- * initialized to NULL. */
- Jim_InitHashTable(&i->commands, &JimCommandsHashTableType, i);
- Jim_InitHashTable(&i->references, &JimReferencesHashTableType, i);
- Jim_InitHashTable(&i->sharedStrings, &JimSharedStringsHashTableType,
- NULL);
- Jim_InitHashTable(&i->stub, &JimStringCopyHashTableType, NULL);
- Jim_InitHashTable(&i->assocData, &JimAssocDataHashTableType, i);
- Jim_InitHashTable(&i->packages, &JimStringKeyValCopyHashTableType, NULL);
- i->framePtr = i->topFramePtr = JimCreateCallFrame(i);
- i->emptyObj = Jim_NewEmptyStringObj(i);
- i->result = i->emptyObj;
- i->stackTrace = Jim_NewListObj(i, NULL, 0);
- i->unknown = Jim_NewStringObj(i, "unknown", -1);
- i->unknown_called = 0;
- Jim_IncrRefCount(i->emptyObj);
- Jim_IncrRefCount(i->result);
- Jim_IncrRefCount(i->stackTrace);
- Jim_IncrRefCount(i->unknown);
-
- /* Initialize key variables every interpreter should contain */
- pathPtr = Jim_NewStringObj(i, "./", -1);
- Jim_SetVariableStr(i, "jim_libpath", pathPtr);
- Jim_SetVariableStrWithStr(i, "jim_interactive", "0");
-
- /* Export the core API to extensions */
- JimRegisterCoreApi(i);
- return i;
-}
-
-/* This is the only function Jim exports directly without
- * to use the STUB system. It is only used by embedders
- * in order to get an interpreter with the Jim API pointers
- * registered. */
-Jim_Interp *ExportedJimCreateInterp(void)
-{
- return Jim_CreateInterp();
-}
-
-void Jim_FreeInterp(Jim_Interp *i)
-{
- Jim_CallFrame *cf = i->framePtr, *prevcf, *nextcf;
- Jim_Obj *objPtr, *nextObjPtr;
-
- Jim_DecrRefCount(i, i->emptyObj);
- Jim_DecrRefCount(i, i->result);
- Jim_DecrRefCount(i, i->stackTrace);
- Jim_DecrRefCount(i, i->unknown);
- Jim_Free((void*)i->errorFileName);
- Jim_Free((void*)i->scriptFileName);
- Jim_FreeHashTable(&i->commands);
- Jim_FreeHashTable(&i->references);
- Jim_FreeHashTable(&i->stub);
- Jim_FreeHashTable(&i->assocData);
- Jim_FreeHashTable(&i->packages);
- Jim_Free(i->prngState);
- /* Free the call frames list */
- while (cf) {
- prevcf = cf->parentCallFrame;
- JimFreeCallFrame(i, cf, JIM_FCF_NONE);
- cf = prevcf;
- }
- /* Check that the live object list is empty, otherwise
- * there is a memory leak. */
- if (i->liveList != NULL) {
- objPtr = i->liveList;
-
- Jim_fprintf(i, i->cookie_stdout,JIM_NL "-------------------------------------" JIM_NL);
- Jim_fprintf(i, i->cookie_stdout,"Objects still in the free list:" JIM_NL);
- while (objPtr) {
- const char *type = objPtr->typePtr ?
- objPtr->typePtr->name : "";
- Jim_fprintf(i, i->cookie_stdout,"%p \"%-10s\": '%.20s' (refCount: %d)" JIM_NL,
- objPtr, type,
- objPtr->bytes ? objPtr->bytes
- : "(null)", objPtr->refCount);
- if (objPtr->typePtr == &sourceObjType) {
- Jim_fprintf(i, i->cookie_stdout, "FILE %s LINE %d" JIM_NL,
- objPtr->internalRep.sourceValue.fileName,
- objPtr->internalRep.sourceValue.lineNumber);
- }
- objPtr = objPtr->nextObjPtr;
- }
- Jim_fprintf(i, i->cookie_stdout, "-------------------------------------" JIM_NL JIM_NL);
- Jim_Panic(i,"Live list non empty freeing the interpreter! Leak?");
- }
- /* Free all the freed objects. */
- objPtr = i->freeList;
- while (objPtr) {
- nextObjPtr = objPtr->nextObjPtr;
- Jim_Free(objPtr);
- objPtr = nextObjPtr;
- }
- /* Free cached CallFrame structures */
- cf = i->freeFramesList;
- while (cf) {
- nextcf = cf->nextFramePtr;
- if (cf->vars.table != NULL)
- Jim_Free(cf->vars.table);
- Jim_Free(cf);
- cf = nextcf;
- }
- /* Free the sharedString hash table. Make sure to free it
- * after every other Jim_Object was freed. */
- Jim_FreeHashTable(&i->sharedStrings);
- /* Free the interpreter structure. */
- Jim_Free(i);
-}
-
-/* Store the call frame relative to the level represented by
- * levelObjPtr into *framePtrPtr. If levelObjPtr == NULL, the
- * level is assumed to be '1'.
- *
- * If a newLevelptr int pointer is specified, the function stores
- * the absolute level integer value of the new target callframe into
- * *newLevelPtr. (this is used to adjust interp->numLevels
- * in the implementation of [uplevel], so that [info level] will
- * return a correct information).
- *
- * This function accepts the 'level' argument in the form
- * of the commands [uplevel] and [upvar].
- *
- * For a function accepting a relative integer as level suitable
- * for implementation of [info level ?level?] check the
- * GetCallFrameByInteger() function. */
-int Jim_GetCallFrameByLevel(Jim_Interp *interp, Jim_Obj *levelObjPtr,
- Jim_CallFrame **framePtrPtr, int *newLevelPtr)
-{
- long level;
- const char *str;
- Jim_CallFrame *framePtr;
-
- if (newLevelPtr) *newLevelPtr = interp->numLevels;
- if (levelObjPtr) {
- str = Jim_GetString(levelObjPtr, NULL);
- if (str[0] == '#') {
- char *endptr;
- /* speedup for the toplevel (level #0) */
- if (str[1] == '0' && str[2] == '\0') {
- if (newLevelPtr) *newLevelPtr = 0;
- *framePtrPtr = interp->topFramePtr;
- return JIM_OK;
- }
-
- level = strtol(str + 1, &endptr, 0);
- if (str[1] == '\0' || endptr[0] != '\0' || level < 0)
- goto badlevel;
- /* An 'absolute' level is converted into the
- * 'number of levels to go back' format. */
- level = interp->numLevels - level;
- if (level < 0) goto badlevel;
- } else {
- if (Jim_GetLong(interp, levelObjPtr, &level) != JIM_OK || level < 0)
- goto badlevel;
- }
- } else {
- str = "1"; /* Needed to format the error message. */
- level = 1;
- }
- /* Lookup */
- framePtr = interp->framePtr;
- if (newLevelPtr) *newLevelPtr = (*newLevelPtr)-level;
- while (level--) {
- framePtr = framePtr->parentCallFrame;
- if (framePtr == NULL) goto badlevel;
- }
- *framePtrPtr = framePtr;
- return JIM_OK;
-badlevel:
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "bad level \"", str, "\"", NULL);
- return JIM_ERR;
-}
-
-/* Similar to Jim_GetCallFrameByLevel() but the level is specified
- * as a relative integer like in the [info level ?level?] command. */
-static int JimGetCallFrameByInteger(Jim_Interp *interp, Jim_Obj *levelObjPtr,
- Jim_CallFrame **framePtrPtr)
-{
- jim_wide level;
- jim_wide relLevel; /* level relative to the current one. */
- Jim_CallFrame *framePtr;
-
- if (Jim_GetWide(interp, levelObjPtr, &level) != JIM_OK)
- goto badlevel;
- if (level > 0) {
- /* An 'absolute' level is converted into the
- * 'number of levels to go back' format. */
- relLevel = interp->numLevels - level;
- } else {
- relLevel = -level;
- }
- /* Lookup */
- framePtr = interp->framePtr;
- while (relLevel--) {
- framePtr = framePtr->parentCallFrame;
- if (framePtr == NULL) goto badlevel;
- }
- *framePtrPtr = framePtr;
- return JIM_OK;
-badlevel:
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "bad level \"", Jim_GetString(levelObjPtr, NULL), "\"", NULL);
- return JIM_ERR;
-}
-
-static void JimSetErrorFileName(Jim_Interp *interp, char *filename)
-{
- Jim_Free((void*)interp->errorFileName);
- interp->errorFileName = Jim_StrDup(filename);
-}
-
-static void JimSetErrorLineNumber(Jim_Interp *interp, int linenr)
-{
- interp->errorLine = linenr;
-}
-
-static void JimResetStackTrace(Jim_Interp *interp)
-{
- Jim_DecrRefCount(interp, interp->stackTrace);
- interp->stackTrace = Jim_NewListObj(interp, NULL, 0);
- Jim_IncrRefCount(interp->stackTrace);
-}
-
-static void JimAppendStackTrace(Jim_Interp *interp, const char *procname,
- const char *filename, int linenr)
-{
- /* No need to add this dummy entry to the stack trace */
- if (strcmp(procname, "unknown") == 0) {
- return;
- }
-
- if (Jim_IsShared(interp->stackTrace)) {
- interp->stackTrace =
- Jim_DuplicateObj(interp, interp->stackTrace);
- Jim_IncrRefCount(interp->stackTrace);
- }
- Jim_ListAppendElement(interp, interp->stackTrace,
- Jim_NewStringObj(interp, procname, -1));
- Jim_ListAppendElement(interp, interp->stackTrace,
- Jim_NewStringObj(interp, filename, -1));
- Jim_ListAppendElement(interp, interp->stackTrace,
- Jim_NewIntObj(interp, linenr));
-}
-
-int Jim_SetAssocData(Jim_Interp *interp, const char *key, Jim_InterpDeleteProc *delProc, void *data)
-{
- AssocDataValue *assocEntryPtr = (AssocDataValue *)Jim_Alloc(sizeof(AssocDataValue));
- assocEntryPtr->delProc = delProc;
- assocEntryPtr->data = data;
- return Jim_AddHashEntry(&interp->assocData, key, assocEntryPtr);
-}
-
-void *Jim_GetAssocData(Jim_Interp *interp, const char *key)
-{
- Jim_HashEntry *entryPtr = Jim_FindHashEntry(&interp->assocData, key);
- if (entryPtr != NULL) {
- AssocDataValue *assocEntryPtr = (AssocDataValue *)entryPtr->val;
- return assocEntryPtr->data;
- }
- return NULL;
-}
-
-int Jim_DeleteAssocData(Jim_Interp *interp, const char *key)
-{
- return Jim_DeleteHashEntry(&interp->assocData, key);
-}
-
-int Jim_GetExitCode(Jim_Interp *interp) {
- return interp->exitCode;
-}
-
-void *Jim_SetStdin(Jim_Interp *interp, void *fp)
-{
- if (fp != NULL) interp->cookie_stdin = fp;
- return interp->cookie_stdin;
-}
-
-void *Jim_SetStdout(Jim_Interp *interp, void *fp)
-{
- if (fp != NULL) interp->cookie_stdout = fp;
- return interp->cookie_stdout;
-}
-
-void *Jim_SetStderr(Jim_Interp *interp, void *fp)
-{
- if (fp != NULL) interp->cookie_stderr = fp;
- return interp->cookie_stderr;
-}
-
-/* -----------------------------------------------------------------------------
- * Shared strings.
- * Every interpreter has an hash table where to put shared dynamically
- * allocate strings that are likely to be used a lot of times.
- * For example, in the 'source' object type, there is a pointer to
- * the filename associated with that object. Every script has a lot
- * of this objects with the identical file name, so it is wise to share
- * this info.
- *
- * The API is trivial: Jim_GetSharedString(interp, "foobar")
- * returns the pointer to the shared string. Every time a reference
- * to the string is no longer used, the user should call
- * Jim_ReleaseSharedString(interp, stringPointer). Once no one is using
- * a given string, it is removed from the hash table.
- * ---------------------------------------------------------------------------*/
-const char *Jim_GetSharedString(Jim_Interp *interp, const char *str)
-{
- Jim_HashEntry *he = Jim_FindHashEntry(&interp->sharedStrings, str);
-
- if (he == NULL) {
- char *strCopy = Jim_StrDup(str);
-
- Jim_AddHashEntry(&interp->sharedStrings, strCopy, (void*)1);
- return strCopy;
- } else {
- intptr_t refCount = (intptr_t) he->val;
-
- refCount++;
- he->val = (void*) refCount;
- return he->key;
- }
-}
-
-void Jim_ReleaseSharedString(Jim_Interp *interp, const char *str)
-{
- intptr_t refCount;
- Jim_HashEntry *he = Jim_FindHashEntry(&interp->sharedStrings, str);
-
- if (he == NULL)
- Jim_Panic(interp,"Jim_ReleaseSharedString called with "
- "unknown shared string '%s'", str);
- refCount = (intptr_t) he->val;
- refCount--;
- if (refCount == 0) {
- Jim_DeleteHashEntry(&interp->sharedStrings, str);
- } else {
- he->val = (void*) refCount;
- }
-}
-
-/* -----------------------------------------------------------------------------
- * Integer object
- * ---------------------------------------------------------------------------*/
-#define JIM_INTEGER_SPACE 24
-
-static void UpdateStringOfInt(struct Jim_Obj *objPtr);
-static int SetIntFromAny(Jim_Interp *interp, Jim_Obj *objPtr, int flags);
-
-static Jim_ObjType intObjType = {
- "int",
- NULL,
- NULL,
- UpdateStringOfInt,
- JIM_TYPE_NONE,
-};
-
-void UpdateStringOfInt(struct Jim_Obj *objPtr)
-{
- int len;
- char buf[JIM_INTEGER_SPACE + 1];
-
- len = Jim_WideToString(buf, objPtr->internalRep.wideValue);
- objPtr->bytes = Jim_Alloc(len + 1);
- memcpy(objPtr->bytes, buf, len + 1);
- objPtr->length = len;
-}
-
-int SetIntFromAny(Jim_Interp *interp, Jim_Obj *objPtr, int flags)
-{
- jim_wide wideValue;
- const char *str;
-
- /* Get the string representation */
- str = Jim_GetString(objPtr, NULL);
- /* Try to convert into a jim_wide */
- if (Jim_StringToWide(str, &wideValue, 0) != JIM_OK) {
- if (flags & JIM_ERRMSG) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "expected integer but got \"", str, "\"", NULL);
- }
- return JIM_ERR;
- }
- if ((wideValue == JIM_WIDE_MIN || wideValue == JIM_WIDE_MAX) &&
- errno == ERANGE) {
- Jim_SetResultString(interp,
- "Integer value too big to be represented", -1);
- return JIM_ERR;
- }
- /* Free the old internal repr and set the new one. */
- Jim_FreeIntRep(interp, objPtr);
- objPtr->typePtr = &intObjType;
- objPtr->internalRep.wideValue = wideValue;
- return JIM_OK;
-}
-
-int Jim_GetWide(Jim_Interp *interp, Jim_Obj *objPtr, jim_wide *widePtr)
-{
- if (objPtr->typePtr != &intObjType &&
- SetIntFromAny(interp, objPtr, JIM_ERRMSG) == JIM_ERR)
- return JIM_ERR;
- *widePtr = objPtr->internalRep.wideValue;
- return JIM_OK;
-}
-
-/* Get a wide but does not set an error if the format is bad. */
-static int JimGetWideNoErr(Jim_Interp *interp, Jim_Obj *objPtr,
- jim_wide *widePtr)
-{
- if (objPtr->typePtr != &intObjType &&
- SetIntFromAny(interp, objPtr, JIM_NONE) == JIM_ERR)
- return JIM_ERR;
- *widePtr = objPtr->internalRep.wideValue;
- return JIM_OK;
-}
-
-int Jim_GetLong(Jim_Interp *interp, Jim_Obj *objPtr, long *longPtr)
-{
- jim_wide wideValue;
- int retval;
-
- retval = Jim_GetWide(interp, objPtr, &wideValue);
- if (retval == JIM_OK) {
- *longPtr = (long) wideValue;
- return JIM_OK;
- }
- return JIM_ERR;
-}
-
-void Jim_SetWide(Jim_Interp *interp, Jim_Obj *objPtr, jim_wide wideValue)
-{
- if (Jim_IsShared(objPtr))
- Jim_Panic(interp,"Jim_SetWide called with shared object");
- if (objPtr->typePtr != &intObjType) {
- Jim_FreeIntRep(interp, objPtr);
- objPtr->typePtr = &intObjType;
- }
- Jim_InvalidateStringRep(objPtr);
- objPtr->internalRep.wideValue = wideValue;
-}
-
-Jim_Obj *Jim_NewIntObj(Jim_Interp *interp, jim_wide wideValue)
-{
- Jim_Obj *objPtr;
-
- objPtr = Jim_NewObj(interp);
- objPtr->typePtr = &intObjType;
- objPtr->bytes = NULL;
- objPtr->internalRep.wideValue = wideValue;
- return objPtr;
-}
-
-/* -----------------------------------------------------------------------------
- * Double object
- * ---------------------------------------------------------------------------*/
-#define JIM_DOUBLE_SPACE 30
-
-static void UpdateStringOfDouble(struct Jim_Obj *objPtr);
-static int SetDoubleFromAny(Jim_Interp *interp, Jim_Obj *objPtr);
-
-static Jim_ObjType doubleObjType = {
- "double",
- NULL,
- NULL,
- UpdateStringOfDouble,
- JIM_TYPE_NONE,
-};
-
-void UpdateStringOfDouble(struct Jim_Obj *objPtr)
-{
- int len;
- char buf[JIM_DOUBLE_SPACE + 1];
-
- len = Jim_DoubleToString(buf, objPtr->internalRep.doubleValue);
- objPtr->bytes = Jim_Alloc(len + 1);
- memcpy(objPtr->bytes, buf, len + 1);
- objPtr->length = len;
-}
-
-int SetDoubleFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- double doubleValue;
- const char *str;
-
- /* Get the string representation */
- str = Jim_GetString(objPtr, NULL);
- /* Try to convert into a double */
- if (Jim_StringToDouble(str, &doubleValue) != JIM_OK) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "expected number but got '", str, "'", NULL);
- return JIM_ERR;
- }
- /* Free the old internal repr and set the new one. */
- Jim_FreeIntRep(interp, objPtr);
- objPtr->typePtr = &doubleObjType;
- objPtr->internalRep.doubleValue = doubleValue;
- return JIM_OK;
-}
-
-int Jim_GetDouble(Jim_Interp *interp, Jim_Obj *objPtr, double *doublePtr)
-{
- if (objPtr->typePtr != &doubleObjType &&
- SetDoubleFromAny(interp, objPtr) == JIM_ERR)
- return JIM_ERR;
- *doublePtr = objPtr->internalRep.doubleValue;
- return JIM_OK;
-}
-
-void Jim_SetDouble(Jim_Interp *interp, Jim_Obj *objPtr, double doubleValue)
-{
- if (Jim_IsShared(objPtr))
- Jim_Panic(interp,"Jim_SetDouble called with shared object");
- if (objPtr->typePtr != &doubleObjType) {
- Jim_FreeIntRep(interp, objPtr);
- objPtr->typePtr = &doubleObjType;
- }
- Jim_InvalidateStringRep(objPtr);
- objPtr->internalRep.doubleValue = doubleValue;
-}
-
-Jim_Obj *Jim_NewDoubleObj(Jim_Interp *interp, double doubleValue)
-{
- Jim_Obj *objPtr;
-
- objPtr = Jim_NewObj(interp);
- objPtr->typePtr = &doubleObjType;
- objPtr->bytes = NULL;
- objPtr->internalRep.doubleValue = doubleValue;
- return objPtr;
-}
-
-/* -----------------------------------------------------------------------------
- * List object
- * ---------------------------------------------------------------------------*/
-static void ListAppendElement(Jim_Obj *listPtr, Jim_Obj *objPtr);
-static void FreeListInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
-static void DupListInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
-static void UpdateStringOfList(struct Jim_Obj *objPtr);
-static int SetListFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
-
-/* Note that while the elements of the list may contain references,
- * the list object itself can't. This basically means that the
- * list object string representation as a whole can't contain references
- * that are not presents in the single elements. */
-static Jim_ObjType listObjType = {
- "list",
- FreeListInternalRep,
- DupListInternalRep,
- UpdateStringOfList,
- JIM_TYPE_NONE,
-};
-
-void FreeListInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- int i;
-
- for (i = 0; i < objPtr->internalRep.listValue.len; i++) {
- Jim_DecrRefCount(interp, objPtr->internalRep.listValue.ele[i]);
- }
- Jim_Free(objPtr->internalRep.listValue.ele);
-}
-
-void DupListInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
-{
- int i;
- JIM_NOTUSED(interp);
-
- dupPtr->internalRep.listValue.len = srcPtr->internalRep.listValue.len;
- dupPtr->internalRep.listValue.maxLen = srcPtr->internalRep.listValue.maxLen;
- dupPtr->internalRep.listValue.ele =
- Jim_Alloc(sizeof(Jim_Obj*)*srcPtr->internalRep.listValue.maxLen);
- memcpy(dupPtr->internalRep.listValue.ele, srcPtr->internalRep.listValue.ele,
- sizeof(Jim_Obj*)*srcPtr->internalRep.listValue.len);
- for (i = 0; i < dupPtr->internalRep.listValue.len; i++) {
- Jim_IncrRefCount(dupPtr->internalRep.listValue.ele[i]);
- }
- dupPtr->typePtr = &listObjType;
-}
-
-/* The following function checks if a given string can be encoded
- * into a list element without any kind of quoting, surrounded by braces,
- * or using escapes to quote. */
-#define JIM_ELESTR_SIMPLE 0
-#define JIM_ELESTR_BRACE 1
-#define JIM_ELESTR_QUOTE 2
-static int ListElementQuotingType(const char *s, int len)
-{
- int i, level, trySimple = 1;
-
- /* Try with the SIMPLE case */
- if (len == 0) return JIM_ELESTR_BRACE;
- if (s[0] == '"' || s[0] == '{') {
- trySimple = 0;
- goto testbrace;
- }
- for (i = 0; i < len; i++) {
- switch (s[i]) {
- case ' ':
- case '$':
- case '"':
- case '[':
- case ']':
- case ';':
- case '\\':
- case '\r':
- case '\n':
- case '\t':
- case '\f':
- case '\v':
- trySimple = 0;
- case '{':
- case '}':
- goto testbrace;
- }
- }
- return JIM_ELESTR_SIMPLE;
-
-testbrace:
- /* Test if it's possible to do with braces */
- if (s[len-1] == '\\' ||
- s[len-1] == ']') return JIM_ELESTR_QUOTE;
- level = 0;
- for (i = 0; i < len; i++) {
- switch (s[i]) {
- case '{': level++; break;
- case '}': level--;
- if (level < 0) return JIM_ELESTR_QUOTE;
- break;
- case '\\':
- if (s[i + 1] == '\n')
- return JIM_ELESTR_QUOTE;
- else
- if (s[i + 1] != '\0') i++;
- break;
- }
- }
- if (level == 0) {
- if (!trySimple) return JIM_ELESTR_BRACE;
- for (i = 0; i < len; i++) {
- switch (s[i]) {
- case ' ':
- case '$':
- case '"':
- case '[':
- case ']':
- case ';':
- case '\\':
- case '\r':
- case '\n':
- case '\t':
- case '\f':
- case '\v':
- return JIM_ELESTR_BRACE;
- break;
- }
- }
- return JIM_ELESTR_SIMPLE;
- }
- return JIM_ELESTR_QUOTE;
-}
-
-/* Returns the malloc-ed representation of a string
- * using backslash to quote special chars. */
-char *BackslashQuoteString(const char *s, int len, int *qlenPtr)
-{
- char *q = Jim_Alloc(len*2 + 1), *p;
-
- p = q;
- while (*s) {
- switch (*s) {
- case ' ':
- case '$':
- case '"':
- case '[':
- case ']':
- case '{':
- case '}':
- case ';':
- case '\\':
- *p++ = '\\';
- *p++ = *s++;
- break;
- case '\n': *p++ = '\\'; *p++ = 'n'; s++; break;
- case '\r': *p++ = '\\'; *p++ = 'r'; s++; break;
- case '\t': *p++ = '\\'; *p++ = 't'; s++; break;
- case '\f': *p++ = '\\'; *p++ = 'f'; s++; break;
- case '\v': *p++ = '\\'; *p++ = 'v'; s++; break;
- default:
- *p++ = *s++;
- break;
- }
- }
- *p = '\0';
- *qlenPtr = p-q;
- return q;
-}
-
-void UpdateStringOfList(struct Jim_Obj *objPtr)
-{
- int i, bufLen, realLength;
- const char *strRep;
- char *p;
- int *quotingType;
- Jim_Obj **ele = objPtr->internalRep.listValue.ele;
-
- /* (Over) Estimate the space needed. */
- quotingType = Jim_Alloc(sizeof(int)*objPtr->internalRep.listValue.len + 1);
- bufLen = 0;
- for (i = 0; i < objPtr->internalRep.listValue.len; i++) {
- int len;
-
- strRep = Jim_GetString(ele[i], &len);
- quotingType[i] = ListElementQuotingType(strRep, len);
- switch (quotingType[i]) {
- case JIM_ELESTR_SIMPLE: bufLen += len; break;
- case JIM_ELESTR_BRACE: bufLen += len + 2; break;
- case JIM_ELESTR_QUOTE: bufLen += len*2; break;
- }
- bufLen++; /* elements separator. */
- }
- bufLen++;
-
- /* Generate the string rep. */
- p = objPtr->bytes = Jim_Alloc(bufLen + 1);
- realLength = 0;
- for (i = 0; i < objPtr->internalRep.listValue.len; i++) {
- int len, qlen;
- strRep = Jim_GetString(ele[i], &len);
- char *q;
-
- switch (quotingType[i]) {
- case JIM_ELESTR_SIMPLE:
- memcpy(p, strRep, len);
- p += len;
- realLength += len;
- break;
- case JIM_ELESTR_BRACE:
- *p++ = '{';
- memcpy(p, strRep, len);
- p += len;
- *p++ = '}';
- realLength += len + 2;
- break;
- case JIM_ELESTR_QUOTE:
- q = BackslashQuoteString(strRep, len, &qlen);
- memcpy(p, q, qlen);
- Jim_Free(q);
- p += qlen;
- realLength += qlen;
- break;
- }
- /* Add a separating space */
- if (i + 1 != objPtr->internalRep.listValue.len) {
- *p++ = ' ';
- realLength ++;
- }
- }
- *p = '\0'; /* nul term. */
- objPtr->length = realLength;
- Jim_Free(quotingType);
-}
-
-int SetListFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr)
-{
- struct JimParserCtx parser;
- const char *str;
- int strLen;
-
- /* Get the string representation */
- str = Jim_GetString(objPtr, &strLen);
-
- /* Free the old internal repr just now and initialize the
- * new one just now. The string->list conversion can't fail. */
- Jim_FreeIntRep(interp, objPtr);
- objPtr->typePtr = &listObjType;
- objPtr->internalRep.listValue.len = 0;
- objPtr->internalRep.listValue.maxLen = 0;
- objPtr->internalRep.listValue.ele = NULL;
-
- /* Convert into a list */
- JimParserInit(&parser, str, strLen, 1);
- while (!JimParserEof(&parser)) {
- char *token;
- int tokenLen, type;
- Jim_Obj *elementPtr;
-
- JimParseList(&parser);
- if (JimParserTtype(&parser) != JIM_TT_STR &&
- JimParserTtype(&parser) != JIM_TT_ESC)
- continue;
- token = JimParserGetToken(&parser, &tokenLen, &type, NULL);
- elementPtr = Jim_NewStringObjNoAlloc(interp, token, tokenLen);
- ListAppendElement(objPtr, elementPtr);
- }
- return JIM_OK;
-}
-
-Jim_Obj *Jim_NewListObj(Jim_Interp *interp, Jim_Obj *const *elements,
- int len)
-{
- Jim_Obj *objPtr;
- int i;
-
- objPtr = Jim_NewObj(interp);
- objPtr->typePtr = &listObjType;
- objPtr->bytes = NULL;
- objPtr->internalRep.listValue.ele = NULL;
- objPtr->internalRep.listValue.len = 0;
- objPtr->internalRep.listValue.maxLen = 0;
- for (i = 0; i < len; i++) {
- ListAppendElement(objPtr, elements[i]);
- }
- return objPtr;
-}
-
-/* Return a vector of Jim_Obj with the elements of a Jim list, and the
- * length of the vector. Note that the user of this function should make
- * sure that the list object can't shimmer while the vector returned
- * is in use, this vector is the one stored inside the internal representation
- * of the list object. This function is not exported, extensions should
- * always access to the List object elements using Jim_ListIndex(). */
-static void JimListGetElements(Jim_Interp *interp, Jim_Obj *listObj, int *argc,
- Jim_Obj ***listVec)
-{
- Jim_ListLength(interp, listObj, argc);
- assert(listObj->typePtr == &listObjType);
- *listVec = listObj->internalRep.listValue.ele;
-}
-
-/* ListSortElements type values */
-enum {JIM_LSORT_ASCII, JIM_LSORT_NOCASE, JIM_LSORT_ASCII_DECR,
- JIM_LSORT_NOCASE_DECR};
-
-/* Sort the internal rep of a list. */
-static int ListSortString(Jim_Obj **lhsObj, Jim_Obj **rhsObj)
-{
- return Jim_StringCompareObj(*lhsObj, *rhsObj, 0);
-}
-
-static int ListSortStringDecr(Jim_Obj **lhsObj, Jim_Obj **rhsObj)
-{
- return Jim_StringCompareObj(*lhsObj, *rhsObj, 0) * -1;
-}
-
-static int ListSortStringNoCase(Jim_Obj **lhsObj, Jim_Obj **rhsObj)
-{
- return Jim_StringCompareObj(*lhsObj, *rhsObj, 1);
-}
-
-static int ListSortStringNoCaseDecr(Jim_Obj **lhsObj, Jim_Obj **rhsObj)
-{
- return Jim_StringCompareObj(*lhsObj, *rhsObj, 1) * -1;
-}
-
-/* Sort a list *in place*. MUST be called with non-shared objects. */
-static void ListSortElements(Jim_Interp *interp, Jim_Obj *listObjPtr, int type)
-{
- typedef int (qsort_comparator)(const void *, const void *);
- int (*fn)(Jim_Obj**, Jim_Obj**);
- Jim_Obj **vector;
- int len;
-
- if (Jim_IsShared(listObjPtr))
- Jim_Panic(interp,"Jim_ListSortElements called with shared object");
- if (listObjPtr->typePtr != &listObjType)
- SetListFromAny(interp, listObjPtr);
-
- vector = listObjPtr->internalRep.listValue.ele;
- len = listObjPtr->internalRep.listValue.len;
- switch (type) {
- case JIM_LSORT_ASCII: fn = ListSortString; break;
- case JIM_LSORT_NOCASE: fn = ListSortStringNoCase; break;
- case JIM_LSORT_ASCII_DECR: fn = ListSortStringDecr; break;
- case JIM_LSORT_NOCASE_DECR: fn = ListSortStringNoCaseDecr; break;
- default:
- fn = NULL; /* avoid warning */
- Jim_Panic(interp,"ListSort called with invalid sort type");
- }
- qsort(vector, len, sizeof(Jim_Obj *), (qsort_comparator *)fn);
- Jim_InvalidateStringRep(listObjPtr);
-}
-
-/* This is the low-level function to append an element to a list.
- * The higher-level Jim_ListAppendElement() performs shared object
- * check and invalidate the string repr. This version is used
- * in the internals of the List Object and is not exported.
- *
- * NOTE: this function can be called only against objects
- * with internal type of List. */
-void ListAppendElement(Jim_Obj *listPtr, Jim_Obj *objPtr)
-{
- int requiredLen = listPtr->internalRep.listValue.len + 1;
-
- if (requiredLen > listPtr->internalRep.listValue.maxLen) {
- int maxLen = requiredLen * 2;
-
- listPtr->internalRep.listValue.ele =
- Jim_Realloc(listPtr->internalRep.listValue.ele,
- sizeof(Jim_Obj*)*maxLen);
- listPtr->internalRep.listValue.maxLen = maxLen;
- }
- listPtr->internalRep.listValue.ele[listPtr->internalRep.listValue.len] =
- objPtr;
- listPtr->internalRep.listValue.len ++;
- Jim_IncrRefCount(objPtr);
-}
-
-/* This is the low-level function to insert elements into a list.
- * The higher-level Jim_ListInsertElements() performs shared object
- * check and invalidate the string repr. This version is used
- * in the internals of the List Object and is not exported.
- *
- * NOTE: this function can be called only against objects
- * with internal type of List. */
-void ListInsertElements(Jim_Obj *listPtr, int index_t, int elemc,
- Jim_Obj *const *elemVec)
-{
- int currentLen = listPtr->internalRep.listValue.len;
- int requiredLen = currentLen + elemc;
- int i;
- Jim_Obj **point;
-
- if (requiredLen > listPtr->internalRep.listValue.maxLen) {
- int maxLen = requiredLen * 2;
-
- listPtr->internalRep.listValue.ele =
- Jim_Realloc(listPtr->internalRep.listValue.ele,
- sizeof(Jim_Obj*)*maxLen);
- listPtr->internalRep.listValue.maxLen = maxLen;
- }
- point = listPtr->internalRep.listValue.ele + index_t;
- memmove(point + elemc, point, (currentLen-index_t) * sizeof(Jim_Obj*));
- for (i = 0; i < elemc; ++i) {
- point[i] = elemVec[i];
- Jim_IncrRefCount(point[i]);
- }
- listPtr->internalRep.listValue.len += elemc;
-}
-
-/* Appends every element of appendListPtr into listPtr.
- * Both have to be of the list type. */
-void ListAppendList(Jim_Obj *listPtr, Jim_Obj *appendListPtr)
-{
- int i, oldLen = listPtr->internalRep.listValue.len;
- int appendLen = appendListPtr->internalRep.listValue.len;
- int requiredLen = oldLen + appendLen;
-
- if (requiredLen > listPtr->internalRep.listValue.maxLen) {
- int maxLen = requiredLen * 2;
-
- listPtr->internalRep.listValue.ele =
- Jim_Realloc(listPtr->internalRep.listValue.ele,
- sizeof(Jim_Obj*)*maxLen);
- listPtr->internalRep.listValue.maxLen = maxLen;
- }
- for (i = 0; i < appendLen; i++) {
- Jim_Obj *objPtr = appendListPtr->internalRep.listValue.ele[i];
- listPtr->internalRep.listValue.ele[oldLen + i] = objPtr;
- Jim_IncrRefCount(objPtr);
- }
- listPtr->internalRep.listValue.len += appendLen;
-}
-
-void Jim_ListAppendElement(Jim_Interp *interp, Jim_Obj *listPtr, Jim_Obj *objPtr)
-{
- if (Jim_IsShared(listPtr))
- Jim_Panic(interp,"Jim_ListAppendElement called with shared object");
- if (listPtr->typePtr != &listObjType)
- SetListFromAny(interp, listPtr);
- Jim_InvalidateStringRep(listPtr);
- ListAppendElement(listPtr, objPtr);
-}
-
-void Jim_ListAppendList(Jim_Interp *interp, Jim_Obj *listPtr, Jim_Obj *appendListPtr)
-{
- if (Jim_IsShared(listPtr))
- Jim_Panic(interp,"Jim_ListAppendList called with shared object");
- if (listPtr->typePtr != &listObjType)
- SetListFromAny(interp, listPtr);
- Jim_InvalidateStringRep(listPtr);
- ListAppendList(listPtr, appendListPtr);
-}
-
-void Jim_ListLength(Jim_Interp *interp, Jim_Obj *listPtr, int *intPtr)
-{
- if (listPtr->typePtr != &listObjType)
- SetListFromAny(interp, listPtr);
- *intPtr = listPtr->internalRep.listValue.len;
-}
-
-void Jim_ListInsertElements(Jim_Interp *interp, Jim_Obj *listPtr, int index_t,
- int objc, Jim_Obj *const *objVec)
-{
- if (Jim_IsShared(listPtr))
- Jim_Panic(interp,"Jim_ListInsertElement called with shared object");
- if (listPtr->typePtr != &listObjType)
- SetListFromAny(interp, listPtr);
- if (index_t >= 0 && index_t > listPtr->internalRep.listValue.len)
- index_t = listPtr->internalRep.listValue.len;
- else if (index_t < 0)
- index_t = 0;
- Jim_InvalidateStringRep(listPtr);
- ListInsertElements(listPtr, index_t, objc, objVec);
-}
-
-int Jim_ListIndex(Jim_Interp *interp, Jim_Obj *listPtr, int index_t,
- Jim_Obj **objPtrPtr, int flags)
-{
- if (listPtr->typePtr != &listObjType)
- SetListFromAny(interp, listPtr);
- if ((index_t >= 0 && index_t >= listPtr->internalRep.listValue.len) ||
- (index_t < 0 && (-index_t-1) >= listPtr->internalRep.listValue.len)) {
- if (flags & JIM_ERRMSG) {
- Jim_SetResultString(interp,
- "list index out of range", -1);
- }
- return JIM_ERR;
- }
- if (index_t < 0)
- index_t = listPtr->internalRep.listValue.len + index_t;
- *objPtrPtr = listPtr->internalRep.listValue.ele[index_t];
- return JIM_OK;
-}
-
-static int ListSetIndex(Jim_Interp *interp, Jim_Obj *listPtr, int index_t,
- Jim_Obj *newObjPtr, int flags)
-{
- if (listPtr->typePtr != &listObjType)
- SetListFromAny(interp, listPtr);
- if ((index_t >= 0 && index_t >= listPtr->internalRep.listValue.len) ||
- (index_t < 0 && (-index_t-1) >= listPtr->internalRep.listValue.len)) {
- if (flags & JIM_ERRMSG) {
- Jim_SetResultString(interp,
- "list index_t out of range", -1);
- }
- return JIM_ERR;
- }
- if (index_t < 0)
- index_t = listPtr->internalRep.listValue.len + index_t;
- Jim_DecrRefCount(interp, listPtr->internalRep.listValue.ele[index_t]);
- listPtr->internalRep.listValue.ele[index_t] = newObjPtr;
- Jim_IncrRefCount(newObjPtr);
- return JIM_OK;
-}
-
-/* Modify the list stored into the variable named 'varNamePtr'
- * setting the element specified by the 'indexc' indexes objects in 'indexv',
- * with the new element 'newObjptr'. */
-int Jim_SetListIndex(Jim_Interp *interp, Jim_Obj *varNamePtr,
- Jim_Obj *const *indexv, int indexc, Jim_Obj *newObjPtr)
-{
- Jim_Obj *varObjPtr, *objPtr, *listObjPtr;
- int shared, i, index_t;
-
- varObjPtr = objPtr = Jim_GetVariable(interp, varNamePtr, JIM_ERRMSG);
- if (objPtr == NULL)
- return JIM_ERR;
- if ((shared = Jim_IsShared(objPtr)))
- varObjPtr = objPtr = Jim_DuplicateObj(interp, objPtr);
- for (i = 0; i < indexc-1; i++) {
- listObjPtr = objPtr;
- if (Jim_GetIndex(interp, indexv[i], &index_t) != JIM_OK)
- goto err;
- if (Jim_ListIndex(interp, listObjPtr, index_t, &objPtr,
- JIM_ERRMSG) != JIM_OK) {
- goto err;
- }
- if (Jim_IsShared(objPtr)) {
- objPtr = Jim_DuplicateObj(interp, objPtr);
- ListSetIndex(interp, listObjPtr, index_t, objPtr, JIM_NONE);
- }
- Jim_InvalidateStringRep(listObjPtr);
- }
- if (Jim_GetIndex(interp, indexv[indexc-1], &index_t) != JIM_OK)
- goto err;
- if (ListSetIndex(interp, objPtr, index_t, newObjPtr, JIM_ERRMSG) == JIM_ERR)
- goto err;
- Jim_InvalidateStringRep(objPtr);
- Jim_InvalidateStringRep(varObjPtr);
- if (Jim_SetVariable(interp, varNamePtr, varObjPtr) != JIM_OK)
- goto err;
- Jim_SetResult(interp, varObjPtr);
- return JIM_OK;
-err:
- if (shared) {
- Jim_FreeNewObj(interp, varObjPtr);
- }
- return JIM_ERR;
-}
-
-Jim_Obj *Jim_ConcatObj(Jim_Interp *interp, int objc, Jim_Obj *const *objv)
-{
- int i;
-
- /* If all the objects in objv are lists without string rep.
- * it's possible to return a list as result, that's the
- * concatenation of all the lists. */
- for (i = 0; i < objc; i++) {
- if (objv[i]->typePtr != &listObjType || objv[i]->bytes)
- break;
- }
- if (i == objc) {
- Jim_Obj *objPtr = Jim_NewListObj(interp, NULL, 0);
- for (i = 0; i < objc; i++)
- Jim_ListAppendList(interp, objPtr, objv[i]);
- return objPtr;
- } else {
- /* Else... we have to glue strings together */
- int len = 0, objLen;
- char *bytes, *p;
-
- /* Compute the length */
- for (i = 0; i < objc; i++) {
- Jim_GetString(objv[i], &objLen);
- len += objLen;
- }
- if (objc) len += objc-1;
- /* Create the string rep, and a stinrg object holding it. */
- p = bytes = Jim_Alloc(len + 1);
- for (i = 0; i < objc; i++) {
- const char *s = Jim_GetString(objv[i], &objLen);
- while (objLen && (*s == ' ' || *s == '\t' || *s == '\n'))
- {
- s++; objLen--; len--;
- }
- while (objLen && (s[objLen-1] == ' ' ||
- s[objLen-1] == '\n' || s[objLen-1] == '\t')) {
- objLen--; len--;
- }
- memcpy(p, s, objLen);
- p += objLen;
- if (objLen && i + 1 != objc) {
- *p++ = ' ';
- } else if (i + 1 != objc) {
- /* Drop the space calcuated for this
- * element that is instead null. */
- len--;
- }
- }
- *p = '\0';
- return Jim_NewStringObjNoAlloc(interp, bytes, len);
- }
-}
-
-/* Returns a list composed of the elements in the specified range.
- * first and start are directly accepted as Jim_Objects and
- * processed for the end?-index? case. */
-Jim_Obj *Jim_ListRange(Jim_Interp *interp, Jim_Obj *listObjPtr, Jim_Obj *firstObjPtr, Jim_Obj *lastObjPtr)
-{
- int first, last;
- int len, rangeLen;
-
- if (Jim_GetIndex(interp, firstObjPtr, &first) != JIM_OK ||
- Jim_GetIndex(interp, lastObjPtr, &last) != JIM_OK)
- return NULL;
- Jim_ListLength(interp, listObjPtr, &len); /* will convert into list */
- first = JimRelToAbsIndex(len, first);
- last = JimRelToAbsIndex(len, last);
- JimRelToAbsRange(len, first, last, &first, &last, &rangeLen);
- return Jim_NewListObj(interp,
- listObjPtr->internalRep.listValue.ele + first, rangeLen);
-}
-
-/* -----------------------------------------------------------------------------
- * Dict object
- * ---------------------------------------------------------------------------*/
-static void FreeDictInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
-static void DupDictInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
-static void UpdateStringOfDict(struct Jim_Obj *objPtr);
-static int SetDictFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
-
-/* Dict HashTable Type.
- *
- * Keys and Values are Jim objects. */
-
-unsigned int JimObjectHTHashFunction(const void *key)
-{
- const char *str;
- Jim_Obj *objPtr = (Jim_Obj*) key;
- int len, h;
-
- str = Jim_GetString(objPtr, &len);
- h = Jim_GenHashFunction((unsigned char*)str, len);
- return h;
-}
-
-int JimObjectHTKeyCompare(void *privdata, const void *key1, const void *key2)
-{
- JIM_NOTUSED(privdata);
-
- return Jim_StringEqObj((Jim_Obj*)key1, (Jim_Obj*)key2, 0);
-}
-
-static void JimObjectHTKeyValDestructor(void *interp, void *val)
-{
- Jim_Obj *objPtr = val;
-
- Jim_DecrRefCount(interp, objPtr);
-}
-
-static Jim_HashTableType JimDictHashTableType = {
- JimObjectHTHashFunction, /* hash function */
- NULL, /* key dup */
- NULL, /* val dup */
- JimObjectHTKeyCompare, /* key compare */
- (void(*)(void*, const void*)) /* ATTENTION: const cast */
- JimObjectHTKeyValDestructor, /* key destructor */
- JimObjectHTKeyValDestructor /* val destructor */
-};
-
-/* Note that while the elements of the dict may contain references,
- * the list object itself can't. This basically means that the
- * dict object string representation as a whole can't contain references
- * that are not presents in the single elements. */
-static Jim_ObjType dictObjType = {
- "dict",
- FreeDictInternalRep,
- DupDictInternalRep,
- UpdateStringOfDict,
- JIM_TYPE_NONE,
-};
-
-void FreeDictInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- JIM_NOTUSED(interp);
-
- Jim_FreeHashTable(objPtr->internalRep.ptr);
- Jim_Free(objPtr->internalRep.ptr);
-}
-
-void DupDictInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
-{
- Jim_HashTable *ht, *dupHt;
- Jim_HashTableIterator *htiter;
- Jim_HashEntry *he;
-
- /* Create a new hash table */
- ht = srcPtr->internalRep.ptr;
- dupHt = Jim_Alloc(sizeof(*dupHt));
- Jim_InitHashTable(dupHt, &JimDictHashTableType, interp);
- if (ht->size != 0)
- Jim_ExpandHashTable(dupHt, ht->size);
- /* Copy every element from the source to the dup hash table */
- htiter = Jim_GetHashTableIterator(ht);
- while ((he = Jim_NextHashEntry(htiter)) != NULL) {
- const Jim_Obj *keyObjPtr = he->key;
- Jim_Obj *valObjPtr = he->val;
-
- Jim_IncrRefCount((Jim_Obj*)keyObjPtr); /* ATTENTION: const cast */
- Jim_IncrRefCount(valObjPtr);
- Jim_AddHashEntry(dupHt, keyObjPtr, valObjPtr);
- }
- Jim_FreeHashTableIterator(htiter);
-
- dupPtr->internalRep.ptr = dupHt;
- dupPtr->typePtr = &dictObjType;
-}
-
-void UpdateStringOfDict(struct Jim_Obj *objPtr)
-{
- int i, bufLen, realLength;
- const char *strRep;
- char *p;
- int *quotingType, objc;
- Jim_HashTable *ht;
- Jim_HashTableIterator *htiter;
- Jim_HashEntry *he;
- Jim_Obj **objv;
-
- /* Trun the hash table into a flat vector of Jim_Objects. */
- ht = objPtr->internalRep.ptr;
- objc = ht->used*2;
- objv = Jim_Alloc(objc*sizeof(Jim_Obj*));
- htiter = Jim_GetHashTableIterator(ht);
- i = 0;
- while ((he = Jim_NextHashEntry(htiter)) != NULL) {
- objv[i++] = (Jim_Obj*)he->key; /* ATTENTION: const cast */
- objv[i++] = he->val;
- }
- Jim_FreeHashTableIterator(htiter);
- /* (Over) Estimate the space needed. */
- quotingType = Jim_Alloc(sizeof(int)*objc);
- bufLen = 0;
- for (i = 0; i < objc; i++) {
- int len;
-
- strRep = Jim_GetString(objv[i], &len);
- quotingType[i] = ListElementQuotingType(strRep, len);
- switch (quotingType[i]) {
- case JIM_ELESTR_SIMPLE: bufLen += len; break;
- case JIM_ELESTR_BRACE: bufLen += len + 2; break;
- case JIM_ELESTR_QUOTE: bufLen += len*2; break;
- }
- bufLen++; /* elements separator. */
- }
- bufLen++;
-
- /* Generate the string rep. */
- p = objPtr->bytes = Jim_Alloc(bufLen + 1);
- realLength = 0;
- for (i = 0; i < objc; i++) {
- int len, qlen;
- strRep = Jim_GetString(objv[i], &len);
- char *q;
-
- switch (quotingType[i]) {
- case JIM_ELESTR_SIMPLE:
- memcpy(p, strRep, len);
- p += len;
- realLength += len;
- break;
- case JIM_ELESTR_BRACE:
- *p++ = '{';
- memcpy(p, strRep, len);
- p += len;
- *p++ = '}';
- realLength += len + 2;
- break;
- case JIM_ELESTR_QUOTE:
- q = BackslashQuoteString(strRep, len, &qlen);
- memcpy(p, q, qlen);
- Jim_Free(q);
- p += qlen;
- realLength += qlen;
- break;
- }
- /* Add a separating space */
- if (i + 1 != objc) {
- *p++ = ' ';
- realLength ++;
- }
- }
- *p = '\0'; /* nul term. */
- objPtr->length = realLength;
- Jim_Free(quotingType);
- Jim_Free(objv);
-}
-
-int SetDictFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr)
-{
- struct JimParserCtx parser;
- Jim_HashTable *ht;
- Jim_Obj *objv[2];
- const char *str;
- int i, strLen;
-
- /* Get the string representation */
- str = Jim_GetString(objPtr, &strLen);
-
- /* Free the old internal repr just now and initialize the
- * new one just now. The string->list conversion can't fail. */
- Jim_FreeIntRep(interp, objPtr);
- ht = Jim_Alloc(sizeof(*ht));
- Jim_InitHashTable(ht, &JimDictHashTableType, interp);
- objPtr->typePtr = &dictObjType;
- objPtr->internalRep.ptr = ht;
-
- /* Convert into a dict */
- JimParserInit(&parser, str, strLen, 1);
- i = 0;
- while (!JimParserEof(&parser)) {
- char *token;
- int tokenLen, type;
-
- JimParseList(&parser);
- if (JimParserTtype(&parser) != JIM_TT_STR &&
- JimParserTtype(&parser) != JIM_TT_ESC)
- continue;
- token = JimParserGetToken(&parser, &tokenLen, &type, NULL);
- objv[i++] = Jim_NewStringObjNoAlloc(interp, token, tokenLen);
- if (i == 2) {
- i = 0;
- Jim_IncrRefCount(objv[0]);
- Jim_IncrRefCount(objv[1]);
- if (Jim_AddHashEntry(ht, objv[0], objv[1]) != JIM_OK) {
- Jim_HashEntry *he;
- he = Jim_FindHashEntry(ht, objv[0]);
- Jim_DecrRefCount(interp, objv[0]);
- /* ATTENTION: const cast */
- Jim_DecrRefCount(interp, (Jim_Obj*)he->val);
- he->val = objv[1];
- }
- }
- }
- if (i) {
- Jim_FreeNewObj(interp, objv[0]);
- objPtr->typePtr = NULL;
- Jim_FreeHashTable(ht);
- Jim_SetResultString(interp, "invalid dictionary value: must be a list with an even number of elements", -1);
- return JIM_ERR;
- }
- return JIM_OK;
-}
-
-/* Dict object API */
-
-/* Add an element to a dict. objPtr must be of the "dict" type.
- * The higer-level exported function is Jim_DictAddElement().
- * If an element with the specified key already exists, the value
- * associated is replaced with the new one.
- *
- * if valueObjPtr == NULL, the key is instead removed if it exists. */
-static void DictAddElement(Jim_Interp *interp, Jim_Obj *objPtr,
- Jim_Obj *keyObjPtr, Jim_Obj *valueObjPtr)
-{
- Jim_HashTable *ht = objPtr->internalRep.ptr;
-
- if (valueObjPtr == NULL) { /* unset */
- Jim_DeleteHashEntry(ht, keyObjPtr);
- return;
- }
- Jim_IncrRefCount(keyObjPtr);
- Jim_IncrRefCount(valueObjPtr);
- if (Jim_AddHashEntry(ht, keyObjPtr, valueObjPtr) != JIM_OK) {
- Jim_HashEntry *he = Jim_FindHashEntry(ht, keyObjPtr);
- Jim_DecrRefCount(interp, keyObjPtr);
- /* ATTENTION: const cast */
- Jim_DecrRefCount(interp, (Jim_Obj*)he->val);
- he->val = valueObjPtr;
- }
-}
-
-/* Add an element, higher-level interface for DictAddElement().
- * If valueObjPtr == NULL, the key is removed if it exists. */
-int Jim_DictAddElement(Jim_Interp *interp, Jim_Obj *objPtr,
- Jim_Obj *keyObjPtr, Jim_Obj *valueObjPtr)
-{
- if (Jim_IsShared(objPtr))
- Jim_Panic(interp,"Jim_DictAddElement called with shared object");
- if (objPtr->typePtr != &dictObjType) {
- if (SetDictFromAny(interp, objPtr) != JIM_OK)
- return JIM_ERR;
- }
- DictAddElement(interp, objPtr, keyObjPtr, valueObjPtr);
- Jim_InvalidateStringRep(objPtr);
- return JIM_OK;
-}
-
-Jim_Obj *Jim_NewDictObj(Jim_Interp *interp, Jim_Obj *const *elements, int len)
-{
- Jim_Obj *objPtr;
- int i;
-
- if (len % 2)
- Jim_Panic(interp,"Jim_NewDicObj() 'len' argument must be even");
-
- objPtr = Jim_NewObj(interp);
- objPtr->typePtr = &dictObjType;
- objPtr->bytes = NULL;
- objPtr->internalRep.ptr = Jim_Alloc(sizeof(Jim_HashTable));
- Jim_InitHashTable(objPtr->internalRep.ptr, &JimDictHashTableType, interp);
- for (i = 0; i < len; i += 2)
- DictAddElement(interp, objPtr, elements[i], elements[i + 1]);
- return objPtr;
-}
-
-/* Return the value associated to the specified dict key */
-int Jim_DictKey(Jim_Interp *interp, Jim_Obj *dictPtr, Jim_Obj *keyPtr,
- Jim_Obj **objPtrPtr, int flags)
-{
- Jim_HashEntry *he;
- Jim_HashTable *ht;
-
- if (dictPtr->typePtr != &dictObjType) {
- if (SetDictFromAny(interp, dictPtr) != JIM_OK)
- return JIM_ERR;
- }
- ht = dictPtr->internalRep.ptr;
- if ((he = Jim_FindHashEntry(ht, keyPtr)) == NULL) {
- if (flags & JIM_ERRMSG) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "key \"", Jim_GetString(keyPtr, NULL),
- "\" not found in dictionary", NULL);
- }
- return JIM_ERR;
- }
- *objPtrPtr = he->val;
- return JIM_OK;
-}
-
-/* Return the value associated to the specified dict keys */
-int Jim_DictKeysVector(Jim_Interp *interp, Jim_Obj *dictPtr,
- Jim_Obj *const *keyv, int keyc, Jim_Obj **objPtrPtr, int flags)
-{
- Jim_Obj *objPtr = NULL;
- int i;
-
- if (keyc == 0) {
- *objPtrPtr = dictPtr;
- return JIM_OK;
- }
-
- for (i = 0; i < keyc; i++) {
- if (Jim_DictKey(interp, dictPtr, keyv[i], &objPtr, flags)
- != JIM_OK)
- return JIM_ERR;
- dictPtr = objPtr;
- }
- *objPtrPtr = objPtr;
- return JIM_OK;
-}
-
-/* Modify the dict stored into the variable named 'varNamePtr'
- * setting the element specified by the 'keyc' keys objects in 'keyv',
- * with the new value of the element 'newObjPtr'.
- *
- * If newObjPtr == NULL the operation is to remove the given key
- * from the dictionary. */
-int Jim_SetDictKeysVector(Jim_Interp *interp, Jim_Obj *varNamePtr,
- Jim_Obj *const *keyv, int keyc, Jim_Obj *newObjPtr)
-{
- Jim_Obj *varObjPtr, *objPtr, *dictObjPtr;
- int shared, i;
-
- varObjPtr = objPtr = Jim_GetVariable(interp, varNamePtr, JIM_ERRMSG);
- if (objPtr == NULL) {
- if (newObjPtr == NULL) /* Cannot remove a key from non existing var */
- return JIM_ERR;
- varObjPtr = objPtr = Jim_NewDictObj(interp, NULL, 0);
- if (Jim_SetVariable(interp, varNamePtr, objPtr) != JIM_OK) {
- Jim_FreeNewObj(interp, varObjPtr);
- return JIM_ERR;
- }
- }
- if ((shared = Jim_IsShared(objPtr)))
- varObjPtr = objPtr = Jim_DuplicateObj(interp, objPtr);
- for (i = 0; i < keyc-1; i++) {
- dictObjPtr = objPtr;
-
- /* Check if it's a valid dictionary */
- if (dictObjPtr->typePtr != &dictObjType) {
- if (SetDictFromAny(interp, dictObjPtr) != JIM_OK)
- goto err;
- }
- /* Check if the given key exists. */
- Jim_InvalidateStringRep(dictObjPtr);
- if (Jim_DictKey(interp, dictObjPtr, keyv[i], &objPtr,
- newObjPtr ? JIM_NONE : JIM_ERRMSG) == JIM_OK)
- {
- /* This key exists at the current level.
- * Make sure it's not shared!. */
- if (Jim_IsShared(objPtr)) {
- objPtr = Jim_DuplicateObj(interp, objPtr);
- DictAddElement(interp, dictObjPtr, keyv[i], objPtr);
- }
- } else {
- /* Key not found. If it's an [unset] operation
- * this is an error. Only the last key may not
- * exist. */
- if (newObjPtr == NULL)
- goto err;
- /* Otherwise set an empty dictionary
- * as key's value. */
- objPtr = Jim_NewDictObj(interp, NULL, 0);
- DictAddElement(interp, dictObjPtr, keyv[i], objPtr);
- }
- }
- if (Jim_DictAddElement(interp, objPtr, keyv[keyc-1], newObjPtr)
- != JIM_OK)
- goto err;
- Jim_InvalidateStringRep(objPtr);
- Jim_InvalidateStringRep(varObjPtr);
- if (Jim_SetVariable(interp, varNamePtr, varObjPtr) != JIM_OK)
- goto err;
- Jim_SetResult(interp, varObjPtr);
- return JIM_OK;
-err:
- if (shared) {
- Jim_FreeNewObj(interp, varObjPtr);
- }
- return JIM_ERR;
-}
-
-/* -----------------------------------------------------------------------------
- * Index object
- * ---------------------------------------------------------------------------*/
-static void UpdateStringOfIndex(struct Jim_Obj *objPtr);
-static int SetIndexFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
-
-static Jim_ObjType indexObjType = {
- "index",
- NULL,
- NULL,
- UpdateStringOfIndex,
- JIM_TYPE_NONE,
-};
-
-void UpdateStringOfIndex(struct Jim_Obj *objPtr)
-{
- int len;
- char buf[JIM_INTEGER_SPACE + 1];
-
- if (objPtr->internalRep.indexValue >= 0)
- len = sprintf(buf, "%d", objPtr->internalRep.indexValue);
- else if (objPtr->internalRep.indexValue == -1)
- len = sprintf(buf, "end");
- else {
- len = sprintf(buf, "end%d", objPtr->internalRep.indexValue + 1);
- }
- objPtr->bytes = Jim_Alloc(len + 1);
- memcpy(objPtr->bytes, buf, len + 1);
- objPtr->length = len;
-}
-
-int SetIndexFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- int index_t, end = 0;
- const char *str;
-
- /* Get the string representation */
- str = Jim_GetString(objPtr, NULL);
- /* Try to convert into an index */
- if (!strcmp(str, "end")) {
- index_t = 0;
- end = 1;
- } else {
- if (!strncmp(str, "end-", 4)) {
- str += 4;
- end = 1;
- }
- if (Jim_StringToIndex(str, &index_t) != JIM_OK) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "bad index \"", Jim_GetString(objPtr, NULL), "\": "
- "must be integer or end?-integer?", NULL);
- return JIM_ERR;
- }
- }
- if (end) {
- if (index_t < 0)
- index_t = INT_MAX;
- else
- index_t = -(index_t + 1);
- } else if (index_t < 0)
- index_t = -INT_MAX;
- /* Free the old internal repr and set the new one. */
- Jim_FreeIntRep(interp, objPtr);
- objPtr->typePtr = &indexObjType;
- objPtr->internalRep.indexValue = index_t;
- return JIM_OK;
-}
-
-int Jim_GetIndex(Jim_Interp *interp, Jim_Obj *objPtr, int *indexPtr)
-{
- /* Avoid shimmering if the object is an integer. */
- if (objPtr->typePtr == &intObjType) {
- jim_wide val = objPtr->internalRep.wideValue;
- if (!(val < LONG_MIN) && !(val > LONG_MAX)) {
- *indexPtr = (val < 0) ? -INT_MAX : (long)val;;
- return JIM_OK;
- }
- }
- if (objPtr->typePtr != &indexObjType &&
- SetIndexFromAny(interp, objPtr) == JIM_ERR)
- return JIM_ERR;
- *indexPtr = objPtr->internalRep.indexValue;
- return JIM_OK;
-}
-
-/* -----------------------------------------------------------------------------
- * Return Code Object.
- * ---------------------------------------------------------------------------*/
-
-static int SetReturnCodeFromAny(Jim_Interp *interp, Jim_Obj *objPtr);
-
-static Jim_ObjType returnCodeObjType = {
- "return-code",
- NULL,
- NULL,
- NULL,
- JIM_TYPE_NONE,
-};
-
-int SetReturnCodeFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- const char *str;
- int strLen, returnCode;
- jim_wide wideValue;
-
- /* Get the string representation */
- str = Jim_GetString(objPtr, &strLen);
- /* Try to convert into an integer */
- if (JimGetWideNoErr(interp, objPtr, &wideValue) != JIM_ERR)
- returnCode = (int) wideValue;
- else if (!JimStringCompare(str, strLen, "ok", 2, JIM_NOCASE))
- returnCode = JIM_OK;
- else if (!JimStringCompare(str, strLen, "error", 5, JIM_NOCASE))
- returnCode = JIM_ERR;
- else if (!JimStringCompare(str, strLen, "return", 6, JIM_NOCASE))
- returnCode = JIM_RETURN;
- else if (!JimStringCompare(str, strLen, "break", 5, JIM_NOCASE))
- returnCode = JIM_BREAK;
- else if (!JimStringCompare(str, strLen, "continue", 8, JIM_NOCASE))
- returnCode = JIM_CONTINUE;
- else if (!JimStringCompare(str, strLen, "eval", 4, JIM_NOCASE))
- returnCode = JIM_EVAL;
- else if (!JimStringCompare(str, strLen, "exit", 4, JIM_NOCASE))
- returnCode = JIM_EXIT;
- else {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "expected return code but got '", str, "'",
- NULL);
- return JIM_ERR;
- }
- /* Free the old internal repr and set the new one. */
- Jim_FreeIntRep(interp, objPtr);
- objPtr->typePtr = &returnCodeObjType;
- objPtr->internalRep.returnCode = returnCode;
- return JIM_OK;
-}
-
-int Jim_GetReturnCode(Jim_Interp *interp, Jim_Obj *objPtr, int *intPtr)
-{
- if (objPtr->typePtr != &returnCodeObjType &&
- SetReturnCodeFromAny(interp, objPtr) == JIM_ERR)
- return JIM_ERR;
- *intPtr = objPtr->internalRep.returnCode;
- return JIM_OK;
-}
-
-/* -----------------------------------------------------------------------------
- * Expression Parsing
- * ---------------------------------------------------------------------------*/
-static int JimParseExprOperator(struct JimParserCtx *pc);
-static int JimParseExprNumber(struct JimParserCtx *pc);
-static int JimParseExprIrrational(struct JimParserCtx *pc);
-
-/* Exrp's Stack machine operators opcodes. */
-
-/* Binary operators (numbers) */
-#define JIM_EXPROP_BINARY_NUM_FIRST 0 /* first */
-#define JIM_EXPROP_MUL 0
-#define JIM_EXPROP_DIV 1
-#define JIM_EXPROP_MOD 2
-#define JIM_EXPROP_SUB 3
-#define JIM_EXPROP_ADD 4
-#define JIM_EXPROP_LSHIFT 5
-#define JIM_EXPROP_RSHIFT 6
-#define JIM_EXPROP_ROTL 7
-#define JIM_EXPROP_ROTR 8
-#define JIM_EXPROP_LT 9
-#define JIM_EXPROP_GT 10
-#define JIM_EXPROP_LTE 11
-#define JIM_EXPROP_GTE 12
-#define JIM_EXPROP_NUMEQ 13
-#define JIM_EXPROP_NUMNE 14
-#define JIM_EXPROP_BITAND 15
-#define JIM_EXPROP_BITXOR 16
-#define JIM_EXPROP_BITOR 17
-#define JIM_EXPROP_LOGICAND 18
-#define JIM_EXPROP_LOGICOR 19
-#define JIM_EXPROP_LOGICAND_LEFT 20
-#define JIM_EXPROP_LOGICOR_LEFT 21
-#define JIM_EXPROP_POW 22
-#define JIM_EXPROP_BINARY_NUM_LAST 22 /* last */
-
-/* Binary operators (strings) */
-#define JIM_EXPROP_STREQ 23
-#define JIM_EXPROP_STRNE 24
-
-/* Unary operators (numbers) */
-#define JIM_EXPROP_NOT 25
-#define JIM_EXPROP_BITNOT 26
-#define JIM_EXPROP_UNARYMINUS 27
-#define JIM_EXPROP_UNARYPLUS 28
-#define JIM_EXPROP_LOGICAND_RIGHT 29
-#define JIM_EXPROP_LOGICOR_RIGHT 30
-
-/* Ternary operators */
-#define JIM_EXPROP_TERNARY 31
-
-/* Operands */
-#define JIM_EXPROP_NUMBER 32
-#define JIM_EXPROP_COMMAND 33
-#define JIM_EXPROP_VARIABLE 34
-#define JIM_EXPROP_DICTSUGAR 35
-#define JIM_EXPROP_SUBST 36
-#define JIM_EXPROP_STRING 37
-
-/* Operators table */
-typedef struct Jim_ExprOperator {
- const char *name;
- int precedence;
- int arity;
- int opcode;
-} Jim_ExprOperator;
-
-/* name - precedence - arity - opcode */
-static struct Jim_ExprOperator Jim_ExprOperators[] = {
- {"!", 300, 1, JIM_EXPROP_NOT},
- {"~", 300, 1, JIM_EXPROP_BITNOT},
- {"unarymin", 300, 1, JIM_EXPROP_UNARYMINUS},
- {"unaryplus", 300, 1, JIM_EXPROP_UNARYPLUS},
-
- {"**", 250, 2, JIM_EXPROP_POW},
-
- {"*", 200, 2, JIM_EXPROP_MUL},
- {"/", 200, 2, JIM_EXPROP_DIV},
- {"%", 200, 2, JIM_EXPROP_MOD},
-
- {"-", 100, 2, JIM_EXPROP_SUB},
- {"+", 100, 2, JIM_EXPROP_ADD},
-
- {"<<<", 90, 3, JIM_EXPROP_ROTL},
- {">>>", 90, 3, JIM_EXPROP_ROTR},
- {"<<", 90, 2, JIM_EXPROP_LSHIFT},
- {">>", 90, 2, JIM_EXPROP_RSHIFT},
-
- {"<", 80, 2, JIM_EXPROP_LT},
- {">", 80, 2, JIM_EXPROP_GT},
- {"<=", 80, 2, JIM_EXPROP_LTE},
- {">=", 80, 2, JIM_EXPROP_GTE},
-
- {"==", 70, 2, JIM_EXPROP_NUMEQ},
- {"!=", 70, 2, JIM_EXPROP_NUMNE},
-
- {"eq", 60, 2, JIM_EXPROP_STREQ},
- {"ne", 60, 2, JIM_EXPROP_STRNE},
-
- {"&", 50, 2, JIM_EXPROP_BITAND},
- {"^", 49, 2, JIM_EXPROP_BITXOR},
- {"|", 48, 2, JIM_EXPROP_BITOR},
-
- {"&&", 10, 2, JIM_EXPROP_LOGICAND},
- {"||", 10, 2, JIM_EXPROP_LOGICOR},
-
- {"?", 5, 3, JIM_EXPROP_TERNARY},
- /* private operators */
- {NULL, 10, 2, JIM_EXPROP_LOGICAND_LEFT},
- {NULL, 10, 1, JIM_EXPROP_LOGICAND_RIGHT},
- {NULL, 10, 2, JIM_EXPROP_LOGICOR_LEFT},
- {NULL, 10, 1, JIM_EXPROP_LOGICOR_RIGHT},
-};
-
-#define JIM_EXPR_OPERATORS_NUM \
- (sizeof(Jim_ExprOperators)/sizeof(struct Jim_ExprOperator))
-
-int JimParseExpression(struct JimParserCtx *pc)
-{
- /* Discard spaces and quoted newline */
- while (*(pc->p) == ' ' ||
- *(pc->p) == '\t' ||
- *(pc->p) == '\r' ||
- *(pc->p) == '\n' ||
- (*(pc->p) == '\\' && *(pc->p + 1) == '\n')) {
- pc->p++; pc->len--;
- }
-
- if (pc->len == 0) {
- pc->tstart = pc->tend = pc->p;
- pc->tline = pc->linenr;
- pc->tt = JIM_TT_EOL;
- pc->eof = 1;
- return JIM_OK;
- }
- switch (*(pc->p)) {
- case '(':
- pc->tstart = pc->tend = pc->p;
- pc->tline = pc->linenr;
- pc->tt = JIM_TT_SUBEXPR_START;
- pc->p++; pc->len--;
- break;
- case ')':
- pc->tstart = pc->tend = pc->p;
- pc->tline = pc->linenr;
- pc->tt = JIM_TT_SUBEXPR_END;
- pc->p++; pc->len--;
- break;
- case '[':
- return JimParseCmd(pc);
- break;
- case '$':
- if (JimParseVar(pc) == JIM_ERR)
- return JimParseExprOperator(pc);
- else
- return JIM_OK;
- break;
- case '-':
- if ((pc->tt == JIM_TT_NONE || pc->tt == JIM_TT_EXPR_OPERATOR) &&
- isdigit((int)*(pc->p + 1)))
- return JimParseExprNumber(pc);
- else
- return JimParseExprOperator(pc);
- break;
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9': case '.':
- return JimParseExprNumber(pc);
- break;
- case '"':
- case '{':
- /* Here it's possible to reuse the List String parsing. */
- pc->tt = JIM_TT_NONE; /* Make sure it's sensed as a new word. */
- return JimParseListStr(pc);
- break;
- case 'N': case 'I':
- case 'n': case 'i':
- if (JimParseExprIrrational(pc) == JIM_ERR)
- return JimParseExprOperator(pc);
- break;
- default:
- return JimParseExprOperator(pc);
- break;
- }
- return JIM_OK;
-}
-
-int JimParseExprNumber(struct JimParserCtx *pc)
-{
- int allowdot = 1;
- int allowhex = 0;
-
- pc->tstart = pc->p;
- pc->tline = pc->linenr;
- if (*pc->p == '-') {
- pc->p++; pc->len--;
- }
- while (isdigit((int)*pc->p)
- || (allowhex && isxdigit((int)*pc->p))
- || (allowdot && *pc->p == '.')
- || (pc->p-pc->tstart == 1 && *pc->tstart == '0' &&
- (*pc->p == 'x' || *pc->p == 'X'))
-)
- {
- if ((*pc->p == 'x') || (*pc->p == 'X')) {
- allowhex = 1;
- allowdot = 0;
- }
- if (*pc->p == '.')
- allowdot = 0;
- pc->p++; pc->len--;
- if (!allowdot && *pc->p == 'e' && *(pc->p + 1) == '-') {
- pc->p += 2; pc->len -= 2;
- }
- }
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_EXPR_NUMBER;
- return JIM_OK;
-}
-
-int JimParseExprIrrational(struct JimParserCtx *pc)
-{
- const char *Tokens[] = {"NaN", "nan", "NAN", "Inf", "inf", "INF", NULL};
- const char **token;
- for (token = Tokens; *token != NULL; token++) {
- int len = strlen(*token);
- if (strncmp(*token, pc->p, len) == 0) {
- pc->tstart = pc->p;
- pc->tend = pc->p + len - 1;
- pc->p += len; pc->len -= len;
- pc->tline = pc->linenr;
- pc->tt = JIM_TT_EXPR_NUMBER;
- return JIM_OK;
- }
- }
- return JIM_ERR;
-}
-
-int JimParseExprOperator(struct JimParserCtx *pc)
-{
- int i;
- int bestIdx = -1, bestLen = 0;
-
- /* Try to get the longest match. */
- for (i = 0; i < (signed)JIM_EXPR_OPERATORS_NUM; i++) {
- const char *opname;
- int oplen;
-
- opname = Jim_ExprOperators[i].name;
- if (opname == NULL) continue;
- oplen = strlen(opname);
-
- if (strncmp(opname, pc->p, oplen) == 0 && oplen > bestLen) {
- bestIdx = i;
- bestLen = oplen;
- }
- }
- if (bestIdx == -1) return JIM_ERR;
- pc->tstart = pc->p;
- pc->tend = pc->p + bestLen - 1;
- pc->p += bestLen; pc->len -= bestLen;
- pc->tline = pc->linenr;
- pc->tt = JIM_TT_EXPR_OPERATOR;
- return JIM_OK;
-}
-
-struct Jim_ExprOperator *JimExprOperatorInfo(const char *opname)
-{
- int i;
- for (i = 0; i < (signed)JIM_EXPR_OPERATORS_NUM; i++)
- if (Jim_ExprOperators[i].name &&
- strcmp(opname, Jim_ExprOperators[i].name) == 0)
- return &Jim_ExprOperators[i];
- return NULL;
-}
-
-struct Jim_ExprOperator *JimExprOperatorInfoByOpcode(int opcode)
-{
- int i;
- for (i = 0; i < (signed)JIM_EXPR_OPERATORS_NUM; i++)
- if (Jim_ExprOperators[i].opcode == opcode)
- return &Jim_ExprOperators[i];
- return NULL;
-}
-
-/* -----------------------------------------------------------------------------
- * Expression Object
- * ---------------------------------------------------------------------------*/
-static void FreeExprInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
-static void DupExprInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
-static int SetExprFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr);
-
-static Jim_ObjType exprObjType = {
- "expression",
- FreeExprInternalRep,
- DupExprInternalRep,
- NULL,
- JIM_TYPE_REFERENCES,
-};
-
-/* Expr bytecode structure */
-typedef struct ExprByteCode {
- int *opcode; /* Integer array of opcodes. */
- Jim_Obj **obj; /* Array of associated Jim Objects. */
- int len; /* Bytecode length */
- int inUse; /* Used for sharing. */
-} ExprByteCode;
-
-void FreeExprInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- int i;
- ExprByteCode *expr = (void*) objPtr->internalRep.ptr;
-
- expr->inUse--;
- if (expr->inUse != 0) return;
- for (i = 0; i < expr->len; i++)
- Jim_DecrRefCount(interp, expr->obj[i]);
- Jim_Free(expr->opcode);
- Jim_Free(expr->obj);
- Jim_Free(expr);
-}
-
-void DupExprInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
-{
- JIM_NOTUSED(interp);
- JIM_NOTUSED(srcPtr);
-
- /* Just returns an simple string. */
- dupPtr->typePtr = NULL;
-}
-
-/* Add a new instruction to an expression bytecode structure. */
-static void ExprObjAddInstr(Jim_Interp *interp, ExprByteCode *expr,
- int opcode, char *str, int len)
-{
- expr->opcode = Jim_Realloc(expr->opcode, sizeof(int)*(expr->len + 1));
- expr->obj = Jim_Realloc(expr->obj, sizeof(Jim_Obj*)*(expr->len + 1));
- expr->opcode[expr->len] = opcode;
- expr->obj[expr->len] = Jim_NewStringObjNoAlloc(interp, str, len);
- Jim_IncrRefCount(expr->obj[expr->len]);
- expr->len++;
-}
-
-/* Check if an expr program looks correct. */
-static int ExprCheckCorrectness(ExprByteCode *expr)
-{
- int i;
- int stacklen = 0;
-
- /* Try to check if there are stack underflows,
- * and make sure at the end of the program there is
- * a single result on the stack. */
- for (i = 0; i < expr->len; i++) {
- switch (expr->opcode[i]) {
- case JIM_EXPROP_NUMBER:
- case JIM_EXPROP_STRING:
- case JIM_EXPROP_SUBST:
- case JIM_EXPROP_VARIABLE:
- case JIM_EXPROP_DICTSUGAR:
- case JIM_EXPROP_COMMAND:
- stacklen++;
- break;
- case JIM_EXPROP_NOT:
- case JIM_EXPROP_BITNOT:
- case JIM_EXPROP_UNARYMINUS:
- case JIM_EXPROP_UNARYPLUS:
- /* Unary operations */
- if (stacklen < 1) return JIM_ERR;
- break;
- case JIM_EXPROP_ADD:
- case JIM_EXPROP_SUB:
- case JIM_EXPROP_MUL:
- case JIM_EXPROP_DIV:
- case JIM_EXPROP_MOD:
- case JIM_EXPROP_LT:
- case JIM_EXPROP_GT:
- case JIM_EXPROP_LTE:
- case JIM_EXPROP_GTE:
- case JIM_EXPROP_ROTL:
- case JIM_EXPROP_ROTR:
- case JIM_EXPROP_LSHIFT:
- case JIM_EXPROP_RSHIFT:
- case JIM_EXPROP_NUMEQ:
- case JIM_EXPROP_NUMNE:
- case JIM_EXPROP_STREQ:
- case JIM_EXPROP_STRNE:
- case JIM_EXPROP_BITAND:
- case JIM_EXPROP_BITXOR:
- case JIM_EXPROP_BITOR:
- case JIM_EXPROP_LOGICAND:
- case JIM_EXPROP_LOGICOR:
- case JIM_EXPROP_POW:
- /* binary operations */
- if (stacklen < 2) return JIM_ERR;
- stacklen--;
- break;
- default:
- Jim_Panic(NULL,"Default opcode reached ExprCheckCorrectness");
- break;
- }
- }
- if (stacklen != 1) return JIM_ERR;
- return JIM_OK;
-}
-
-static void ExprShareLiterals(Jim_Interp *interp, ExprByteCode *expr,
- ScriptObj *topLevelScript)
-{
- int i;
-
- return;
- for (i = 0; i < expr->len; i++) {
- Jim_Obj *foundObjPtr;
-
- if (expr->obj[i] == NULL) continue;
- foundObjPtr = ScriptSearchLiteral(interp, topLevelScript,
- NULL, expr->obj[i]);
- if (foundObjPtr != NULL) {
- Jim_IncrRefCount(foundObjPtr);
- Jim_DecrRefCount(interp, expr->obj[i]);
- expr->obj[i] = foundObjPtr;
- }
- }
-}
-
-/* This procedure converts every occurrence of || and && opereators
- * in lazy unary versions.
- *
- * a b || is converted into:
- *
- * a <offset> |L b |R
- *
- * a b && is converted into:
- *
- * a <offset> &L b &R
- *
- * "|L" checks if 'a' is true:
- * 1) if it is true pushes 1 and skips <offset> istructions to reach
- * the opcode just after |R.
- * 2) if it is false does nothing.
- * "|R" checks if 'b' is true:
- * 1) if it is true pushes 1, otherwise pushes 0.
- *
- * "&L" checks if 'a' is true:
- * 1) if it is true does nothing.
- * 2) If it is false pushes 0 and skips <offset> istructions to reach
- * the opcode just after &R
- * "&R" checks if 'a' is true:
- * if it is true pushes 1, otherwise pushes 0.
- */
-static void ExprMakeLazy(Jim_Interp *interp, ExprByteCode *expr)
-{
- while (1) {
- int index_t = -1, leftindex, arity, i, offset;
- Jim_ExprOperator *op;
-
- /* Search for || or && */
- for (i = 0; i < expr->len; i++) {
- if (expr->opcode[i] == JIM_EXPROP_LOGICAND ||
- expr->opcode[i] == JIM_EXPROP_LOGICOR) {
- index_t = i;
- break;
- }
- }
- if (index_t == -1) return;
- /* Search for the end of the first operator */
- leftindex = index_t-1;
- arity = 1;
- while (arity) {
- switch (expr->opcode[leftindex]) {
- case JIM_EXPROP_NUMBER:
- case JIM_EXPROP_COMMAND:
- case JIM_EXPROP_VARIABLE:
- case JIM_EXPROP_DICTSUGAR:
- case JIM_EXPROP_SUBST:
- case JIM_EXPROP_STRING:
- break;
- default:
- op = JimExprOperatorInfoByOpcode(expr->opcode[leftindex]);
- if (op == NULL) {
- Jim_Panic(interp,"Default reached in ExprMakeLazy()");
- }
- arity += op->arity;
- break;
- }
- arity--;
- leftindex--;
- }
- leftindex++;
- expr->opcode = Jim_Realloc(expr->opcode, sizeof(int)*(expr->len + 2));
- expr->obj = Jim_Realloc(expr->obj, sizeof(Jim_Obj*)*(expr->len + 2));
- memmove(&expr->opcode[leftindex + 2], &expr->opcode[leftindex],
- sizeof(int)*(expr->len-leftindex));
- memmove(&expr->obj[leftindex + 2], &expr->obj[leftindex],
- sizeof(Jim_Obj*)*(expr->len-leftindex));
- expr->len += 2;
- index_t += 2;
- offset = (index_t-leftindex)-1;
- Jim_DecrRefCount(interp, expr->obj[index_t]);
- if (expr->opcode[index_t] == JIM_EXPROP_LOGICAND) {
- expr->opcode[leftindex + 1] = JIM_EXPROP_LOGICAND_LEFT;
- expr->opcode[index_t] = JIM_EXPROP_LOGICAND_RIGHT;
- expr->obj[leftindex + 1] = Jim_NewStringObj(interp, "&L", -1);
- expr->obj[index_t] = Jim_NewStringObj(interp, "&R", -1);
- } else {
- expr->opcode[leftindex + 1] = JIM_EXPROP_LOGICOR_LEFT;
- expr->opcode[index_t] = JIM_EXPROP_LOGICOR_RIGHT;
- expr->obj[leftindex + 1] = Jim_NewStringObj(interp, "|L", -1);
- expr->obj[index_t] = Jim_NewStringObj(interp, "|R", -1);
- }
- expr->opcode[leftindex] = JIM_EXPROP_NUMBER;
- expr->obj[leftindex] = Jim_NewIntObj(interp, offset);
- Jim_IncrRefCount(expr->obj[index_t]);
- Jim_IncrRefCount(expr->obj[leftindex]);
- Jim_IncrRefCount(expr->obj[leftindex + 1]);
- }
-}
-
-/* This method takes the string representation of an expression
- * and generates a program for the Expr's stack-based VM. */
-int SetExprFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr)
-{
- int exprTextLen;
- const char *exprText = Jim_GetString(objPtr, &exprTextLen);
- struct JimParserCtx parser;
- int i, shareLiterals;
- ExprByteCode *expr = Jim_Alloc(sizeof(*expr));
- Jim_Stack stack;
- Jim_ExprOperator *op;
-
- /* Perform literal sharing with the current procedure
- * running only if this expression appears to be not generated
- * at runtime. */
- shareLiterals = objPtr->typePtr == &sourceObjType;
-
- expr->opcode = NULL;
- expr->obj = NULL;
- expr->len = 0;
- expr->inUse = 1;
-
- Jim_InitStack(&stack);
- JimParserInit(&parser, exprText, exprTextLen, 1);
- while (!JimParserEof(&parser)) {
- char *token;
- int len, type;
-
- if (JimParseExpression(&parser) != JIM_OK) {
- Jim_SetResultString(interp, "Syntax error in expression", -1);
- goto err;
- }
- token = JimParserGetToken(&parser, &len, &type, NULL);
- if (type == JIM_TT_EOL) {
- Jim_Free(token);
- break;
- }
- switch (type) {
- case JIM_TT_STR:
- ExprObjAddInstr(interp, expr, JIM_EXPROP_STRING, token, len);
- break;
- case JIM_TT_ESC:
- ExprObjAddInstr(interp, expr, JIM_EXPROP_SUBST, token, len);
- break;
- case JIM_TT_VAR:
- ExprObjAddInstr(interp, expr, JIM_EXPROP_VARIABLE, token, len);
- break;
- case JIM_TT_DICTSUGAR:
- ExprObjAddInstr(interp, expr, JIM_EXPROP_DICTSUGAR, token, len);
- break;
- case JIM_TT_CMD:
- ExprObjAddInstr(interp, expr, JIM_EXPROP_COMMAND, token, len);
- break;
- case JIM_TT_EXPR_NUMBER:
- ExprObjAddInstr(interp, expr, JIM_EXPROP_NUMBER, token, len);
- break;
- case JIM_TT_EXPR_OPERATOR:
- op = JimExprOperatorInfo(token);
- while (1) {
- Jim_ExprOperator *stackTopOp;
-
- if (Jim_StackPeek(&stack) != NULL) {
- stackTopOp = JimExprOperatorInfo(Jim_StackPeek(&stack));
- } else {
- stackTopOp = NULL;
- }
- if (Jim_StackLen(&stack) && op->arity != 1 &&
- stackTopOp && stackTopOp->precedence >= op->precedence)
- {
- ExprObjAddInstr(interp, expr, stackTopOp->opcode,
- Jim_StackPeek(&stack), -1);
- Jim_StackPop(&stack);
- } else {
- break;
- }
- }
- Jim_StackPush(&stack, token);
- break;
- case JIM_TT_SUBEXPR_START:
- Jim_StackPush(&stack, Jim_StrDup("("));
- Jim_Free(token);
- break;
- case JIM_TT_SUBEXPR_END:
- {
- int found = 0;
- while (Jim_StackLen(&stack)) {
- char *opstr = Jim_StackPop(&stack);
- if (!strcmp(opstr, "(")) {
- Jim_Free(opstr);
- found = 1;
- break;
- }
- op = JimExprOperatorInfo(opstr);
- ExprObjAddInstr(interp, expr, op->opcode, opstr, -1);
- }
- if (!found) {
- Jim_SetResultString(interp,
- "Unexpected close parenthesis", -1);
- goto err;
- }
- }
- Jim_Free(token);
- break;
- default:
- Jim_Panic(interp,"Default reached in SetExprFromAny()");
- break;
- }
- }
- while (Jim_StackLen(&stack)) {
- char *opstr = Jim_StackPop(&stack);
- op = JimExprOperatorInfo(opstr);
- if (op == NULL && !strcmp(opstr, "(")) {
- Jim_Free(opstr);
- Jim_SetResultString(interp, "Missing close parenthesis", -1);
- goto err;
- }
- ExprObjAddInstr(interp, expr, op->opcode, opstr, -1);
- }
- /* Check program correctness. */
- if (ExprCheckCorrectness(expr) != JIM_OK) {
- Jim_SetResultString(interp, "Invalid expression", -1);
- goto err;
- }
-
- /* Free the stack used for the compilation. */
- Jim_FreeStackElements(&stack, Jim_Free);
- Jim_FreeStack(&stack);
-
- /* Convert || and && operators in unary |L |R and &L &R for lazyness */
- ExprMakeLazy(interp, expr);
-
- /* Perform literal sharing */
- if (shareLiterals && interp->framePtr->procBodyObjPtr) {
- Jim_Obj *bodyObjPtr = interp->framePtr->procBodyObjPtr;
- if (bodyObjPtr->typePtr == &scriptObjType) {
- ScriptObj *bodyScript = bodyObjPtr->internalRep.ptr;
- ExprShareLiterals(interp, expr, bodyScript);
- }
- }
-
- /* Free the old internal rep and set the new one. */
- Jim_FreeIntRep(interp, objPtr);
- Jim_SetIntRepPtr(objPtr, expr);
- objPtr->typePtr = &exprObjType;
- return JIM_OK;
-
-err: /* we jump here on syntax/compile errors. */
- Jim_FreeStackElements(&stack, Jim_Free);
- Jim_FreeStack(&stack);
- Jim_Free(expr->opcode);
- for (i = 0; i < expr->len; i++) {
- Jim_DecrRefCount(interp,expr->obj[i]);
- }
- Jim_Free(expr->obj);
- Jim_Free(expr);
- return JIM_ERR;
-}
-
-ExprByteCode *Jim_GetExpression(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- if (objPtr->typePtr != &exprObjType) {
- if (SetExprFromAny(interp, objPtr) != JIM_OK)
- return NULL;
- }
- return (ExprByteCode*) Jim_GetIntRepPtr(objPtr);
-}
-
-/* -----------------------------------------------------------------------------
- * Expressions evaluation.
- * Jim uses a specialized stack-based virtual machine for expressions,
- * that takes advantage of the fact that expr's operators
- * can't be redefined.
- *
- * Jim_EvalExpression() uses the bytecode compiled by
- * SetExprFromAny() method of the "expression" object.
- *
- * On success a Tcl Object containing the result of the evaluation
- * is stored into expResultPtrPtr (having refcount of 1), and JIM_OK is
- * returned.
- * On error the function returns a retcode != to JIM_OK and set a suitable
- * error on the interp.
- * ---------------------------------------------------------------------------*/
-#define JIM_EE_STATICSTACK_LEN 10
-
-int Jim_EvalExpression(Jim_Interp *interp, Jim_Obj *exprObjPtr,
- Jim_Obj **exprResultPtrPtr)
-{
- ExprByteCode *expr;
- Jim_Obj **stack, *staticStack[JIM_EE_STATICSTACK_LEN];
- int stacklen = 0, i, error = 0, errRetCode = JIM_ERR;
-
- Jim_IncrRefCount(exprObjPtr);
- expr = Jim_GetExpression(interp, exprObjPtr);
- if (!expr) {
- Jim_DecrRefCount(interp, exprObjPtr);
- return JIM_ERR; /* error in expression. */
- }
- /* In order to avoid that the internal repr gets freed due to
- * shimmering of the exprObjPtr's object, we make the internal rep
- * shared. */
- expr->inUse++;
-
- /* The stack-based expr VM itself */
-
- /* Stack allocation. Expr programs have the feature that
- * a program of length N can't require a stack longer than
- * N. */
- if (expr->len > JIM_EE_STATICSTACK_LEN)
- stack = Jim_Alloc(sizeof(Jim_Obj*)*expr->len);
- else
- stack = staticStack;
-
- /* Execute every istruction */
- for (i = 0; i < expr->len; i++) {
- Jim_Obj *A, *B, *objPtr;
- jim_wide wA, wB, wC;
- double dA, dB, dC;
- const char *sA, *sB;
- int Alen, Blen, retcode;
- int opcode = expr->opcode[i];
-
- if (opcode == JIM_EXPROP_NUMBER || opcode == JIM_EXPROP_STRING) {
- stack[stacklen++] = expr->obj[i];
- Jim_IncrRefCount(expr->obj[i]);
- } else if (opcode == JIM_EXPROP_VARIABLE) {
- objPtr = Jim_GetVariable(interp, expr->obj[i], JIM_ERRMSG);
- if (objPtr == NULL) {
- error = 1;
- goto err;
- }
- stack[stacklen++] = objPtr;
- Jim_IncrRefCount(objPtr);
- } else if (opcode == JIM_EXPROP_SUBST) {
- if ((retcode = Jim_SubstObj(interp, expr->obj[i],
- &objPtr, JIM_NONE)) != JIM_OK)
- {
- error = 1;
- errRetCode = retcode;
- goto err;
- }
- stack[stacklen++] = objPtr;
- Jim_IncrRefCount(objPtr);
- } else if (opcode == JIM_EXPROP_DICTSUGAR) {
- objPtr = Jim_ExpandDictSugar(interp, expr->obj[i]);
- if (objPtr == NULL) {
- error = 1;
- goto err;
- }
- stack[stacklen++] = objPtr;
- Jim_IncrRefCount(objPtr);
- } else if (opcode == JIM_EXPROP_COMMAND) {
- if ((retcode = Jim_EvalObj(interp, expr->obj[i])) != JIM_OK) {
- error = 1;
- errRetCode = retcode;
- goto err;
- }
- stack[stacklen++] = interp->result;
- Jim_IncrRefCount(interp->result);
- } else if (opcode >= JIM_EXPROP_BINARY_NUM_FIRST &&
- opcode <= JIM_EXPROP_BINARY_NUM_LAST)
- {
- /* Note that there isn't to increment the
- * refcount of objects. the references are moved
- * from stack to A and B. */
- B = stack[--stacklen];
- A = stack[--stacklen];
-
- /* --- Integer --- */
- if ((A->typePtr == &doubleObjType && !A->bytes) ||
- (B->typePtr == &doubleObjType && !B->bytes) ||
- JimGetWideNoErr(interp, A, &wA) != JIM_OK ||
- JimGetWideNoErr(interp, B, &wB) != JIM_OK) {
- goto trydouble;
- }
- Jim_DecrRefCount(interp, A);
- Jim_DecrRefCount(interp, B);
- switch (expr->opcode[i]) {
- case JIM_EXPROP_ADD: wC = wA + wB; break;
- case JIM_EXPROP_SUB: wC = wA-wB; break;
- case JIM_EXPROP_MUL: wC = wA*wB; break;
- case JIM_EXPROP_LT: wC = wA < wB; break;
- case JIM_EXPROP_GT: wC = wA > wB; break;
- case JIM_EXPROP_LTE: wC = wA <= wB; break;
- case JIM_EXPROP_GTE: wC = wA >= wB; break;
- case JIM_EXPROP_LSHIFT: wC = wA << wB; break;
- case JIM_EXPROP_RSHIFT: wC = wA >> wB; break;
- case JIM_EXPROP_NUMEQ: wC = wA == wB; break;
- case JIM_EXPROP_NUMNE: wC = wA != wB; break;
- case JIM_EXPROP_BITAND: wC = wA&wB; break;
- case JIM_EXPROP_BITXOR: wC = wA^wB; break;
- case JIM_EXPROP_BITOR: wC = wA | wB; break;
- case JIM_EXPROP_POW: wC = JimPowWide(wA,wB); break;
- case JIM_EXPROP_LOGICAND_LEFT:
- if (wA == 0) {
- i += (int)wB;
- wC = 0;
- } else {
- continue;
- }
- break;
- case JIM_EXPROP_LOGICOR_LEFT:
- if (wA != 0) {
- i += (int)wB;
- wC = 1;
- } else {
- continue;
- }
- break;
- case JIM_EXPROP_DIV:
- if (wB == 0) goto divbyzero;
- wC = wA/wB;
- break;
- case JIM_EXPROP_MOD:
- if (wB == 0) goto divbyzero;
- wC = wA%wB;
- break;
- case JIM_EXPROP_ROTL: {
- /* uint32_t would be better. But not everyone has inttypes.h?*/
- unsigned long uA = (unsigned long)wA;
-#ifdef _MSC_VER
- wC = _rotl(uA,(unsigned long)wB);
-#else
- const unsigned int S = sizeof(unsigned long) * 8;
- wC = (unsigned long)((uA << wB) | (uA >> (S-wB)));
-#endif
- break;
- }
- case JIM_EXPROP_ROTR: {
- unsigned long uA = (unsigned long)wA;
-#ifdef _MSC_VER
- wC = _rotr(uA,(unsigned long)wB);
-#else
- const unsigned int S = sizeof(unsigned long) * 8;
- wC = (unsigned long)((uA >> wB) | (uA << (S-wB)));
-#endif
- break;
- }
-
- default:
- wC = 0; /* avoid gcc warning */
- break;
- }
- stack[stacklen] = Jim_NewIntObj(interp, wC);
- Jim_IncrRefCount(stack[stacklen]);
- stacklen++;
- continue;
-trydouble:
- /* --- Double --- */
- if (Jim_GetDouble(interp, A, &dA) != JIM_OK ||
- Jim_GetDouble(interp, B, &dB) != JIM_OK) {
-
- /* Hmmm! For compatibility, maybe convert != and == into ne and eq */
- if (expr->opcode[i] == JIM_EXPROP_NUMNE) {
- opcode = JIM_EXPROP_STRNE;
- goto retry_as_string;
- }
- else if (expr->opcode[i] == JIM_EXPROP_NUMEQ) {
- opcode = JIM_EXPROP_STREQ;
- goto retry_as_string;
- }
- Jim_DecrRefCount(interp, A);
- Jim_DecrRefCount(interp, B);
- error = 1;
- goto err;
- }
- Jim_DecrRefCount(interp, A);
- Jim_DecrRefCount(interp, B);
- switch (expr->opcode[i]) {
- case JIM_EXPROP_ROTL:
- case JIM_EXPROP_ROTR:
- case JIM_EXPROP_LSHIFT:
- case JIM_EXPROP_RSHIFT:
- case JIM_EXPROP_BITAND:
- case JIM_EXPROP_BITXOR:
- case JIM_EXPROP_BITOR:
- case JIM_EXPROP_MOD:
- case JIM_EXPROP_POW:
- Jim_SetResultString(interp,
- "Got floating-point value where integer was expected", -1);
- error = 1;
- goto err;
- case JIM_EXPROP_ADD: dC = dA + dB; break;
- case JIM_EXPROP_SUB: dC = dA-dB; break;
- case JIM_EXPROP_MUL: dC = dA*dB; break;
- case JIM_EXPROP_LT: dC = dA < dB; break;
- case JIM_EXPROP_GT: dC = dA > dB; break;
- case JIM_EXPROP_LTE: dC = dA <= dB; break;
- case JIM_EXPROP_GTE: dC = dA >= dB; break;
- /* FIXME comparing floats for equality/inequality is bad juju */
- case JIM_EXPROP_NUMEQ: dC = dA == dB; break;
- case JIM_EXPROP_NUMNE: dC = dA != dB; break;
- case JIM_EXPROP_LOGICAND_LEFT:
- if (dA == 0) {
- i += (int)dB;
- dC = 0;
- } else {
- continue;
- }
- break;
- case JIM_EXPROP_LOGICOR_LEFT:
- if (dA != 0) {
- i += (int)dB;
- dC = 1;
- } else {
- continue;
- }
- break;
- case JIM_EXPROP_DIV:
- if (dB == 0) goto divbyzero;
- dC = dA/dB;
- break;
- default:
- dC = 0; /* avoid gcc warning */
- break;
- }
- stack[stacklen] = Jim_NewDoubleObj(interp, dC);
- Jim_IncrRefCount(stack[stacklen]);
- stacklen++;
- } else if (opcode == JIM_EXPROP_STREQ || opcode == JIM_EXPROP_STRNE) {
- B = stack[--stacklen];
- A = stack[--stacklen];
-retry_as_string:
- sA = Jim_GetString(A, &Alen);
- sB = Jim_GetString(B, &Blen);
- switch (opcode) {
- case JIM_EXPROP_STREQ:
- if (Alen == Blen && memcmp(sA, sB, Alen) ==0)
- wC = 1;
- else
- wC = 0;
- break;
- case JIM_EXPROP_STRNE:
- if (Alen != Blen || memcmp(sA, sB, Alen) != 0)
- wC = 1;
- else
- wC = 0;
- break;
- default:
- wC = 0; /* avoid gcc warning */
- break;
- }
- Jim_DecrRefCount(interp, A);
- Jim_DecrRefCount(interp, B);
- stack[stacklen] = Jim_NewIntObj(interp, wC);
- Jim_IncrRefCount(stack[stacklen]);
- stacklen++;
- } else if (opcode == JIM_EXPROP_NOT ||
- opcode == JIM_EXPROP_BITNOT ||
- opcode == JIM_EXPROP_LOGICAND_RIGHT ||
- opcode == JIM_EXPROP_LOGICOR_RIGHT) {
- /* Note that there isn't to increment the
- * refcount of objects. the references are moved
- * from stack to A and B. */
- A = stack[--stacklen];
-
- /* --- Integer --- */
- if ((A->typePtr == &doubleObjType && !A->bytes) ||
- JimGetWideNoErr(interp, A, &wA) != JIM_OK) {
- goto trydouble_unary;
- }
- Jim_DecrRefCount(interp, A);
- switch (expr->opcode[i]) {
- case JIM_EXPROP_NOT: wC = !wA; break;
- case JIM_EXPROP_BITNOT: wC = ~wA; break;
- case JIM_EXPROP_LOGICAND_RIGHT:
- case JIM_EXPROP_LOGICOR_RIGHT: wC = (wA != 0); break;
- default:
- wC = 0; /* avoid gcc warning */
- break;
- }
- stack[stacklen] = Jim_NewIntObj(interp, wC);
- Jim_IncrRefCount(stack[stacklen]);
- stacklen++;
- continue;
-trydouble_unary:
- /* --- Double --- */
- if (Jim_GetDouble(interp, A, &dA) != JIM_OK) {
- Jim_DecrRefCount(interp, A);
- error = 1;
- goto err;
- }
- Jim_DecrRefCount(interp, A);
- switch (expr->opcode[i]) {
- case JIM_EXPROP_NOT: dC = !dA; break;
- case JIM_EXPROP_LOGICAND_RIGHT:
- case JIM_EXPROP_LOGICOR_RIGHT: dC = (dA != 0); break;
- case JIM_EXPROP_BITNOT:
- Jim_SetResultString(interp,
- "Got floating-point value where integer was expected", -1);
- error = 1;
- goto err;
- break;
- default:
- dC = 0; /* avoid gcc warning */
- break;
- }
- stack[stacklen] = Jim_NewDoubleObj(interp, dC);
- Jim_IncrRefCount(stack[stacklen]);
- stacklen++;
- } else {
- Jim_Panic(interp,"Unknown opcode in Jim_EvalExpression");
- }
- }
-err:
- /* There is no need to decerement the inUse field because
- * this reference is transfered back into the exprObjPtr. */
- Jim_FreeIntRep(interp, exprObjPtr);
- exprObjPtr->typePtr = &exprObjType;
- Jim_SetIntRepPtr(exprObjPtr, expr);
- Jim_DecrRefCount(interp, exprObjPtr);
- if (!error) {
- *exprResultPtrPtr = stack[0];
- Jim_IncrRefCount(stack[0]);
- errRetCode = JIM_OK;
- }
- for (i = 0; i < stacklen; i++) {
- Jim_DecrRefCount(interp, stack[i]);
- }
- if (stack != staticStack)
- Jim_Free(stack);
- return errRetCode;
-divbyzero:
- error = 1;
- Jim_SetResultString(interp, "Division by zero", -1);
- goto err;
-}
-
-int Jim_GetBoolFromExpr(Jim_Interp *interp, Jim_Obj *exprObjPtr, int *boolPtr)
-{
- int retcode;
- jim_wide wideValue;
- double doubleValue;
- Jim_Obj *exprResultPtr;
-
- retcode = Jim_EvalExpression(interp, exprObjPtr, &exprResultPtr);
- if (retcode != JIM_OK)
- return retcode;
- if (JimGetWideNoErr(interp, exprResultPtr, &wideValue) != JIM_OK) {
- if (Jim_GetDouble(interp, exprResultPtr, &doubleValue) != JIM_OK)
- {
- Jim_DecrRefCount(interp, exprResultPtr);
- return JIM_ERR;
- } else {
- Jim_DecrRefCount(interp, exprResultPtr);
- *boolPtr = doubleValue != 0;
- return JIM_OK;
- }
- }
- Jim_DecrRefCount(interp, exprResultPtr);
- *boolPtr = wideValue != 0;
- return JIM_OK;
-}
-
-/* -----------------------------------------------------------------------------
- * ScanFormat String Object
- * ---------------------------------------------------------------------------*/
-
-/* This Jim_Obj will held a parsed representation of a format string passed to
- * the Jim_ScanString command. For error diagnostics, the scanformat string has
- * to be parsed in its entirely first and then, if correct, can be used for
- * scanning. To avoid endless re-parsing, the parsed representation will be
- * stored in an internal representation and re-used for performance reason. */
-
-/* A ScanFmtPartDescr will held the information of /one/ part of the whole
- * scanformat string. This part will later be used to extract information
- * out from the string to be parsed by Jim_ScanString */
-
-typedef struct ScanFmtPartDescr {
- char type; /* Type of conversion (e.g. c, d, f) */
- char modifier; /* Modify type (e.g. l - long, h - short */
- size_t width; /* Maximal width of input to be converted */
- int pos; /* -1 - no assign, 0 - natural pos, >0 - XPG3 pos */
- char *arg; /* Specification of a CHARSET conversion */
- char *prefix; /* Prefix to be scanned literally before conversion */
-} ScanFmtPartDescr;
-
-/* The ScanFmtStringObj will held the internal representation of a scanformat
- * string parsed and separated in part descriptions. Furthermore it contains
- * the original string representation of the scanformat string to allow for
- * fast update of the Jim_Obj's string representation part.
- *
- * As add-on the internal object representation add some scratch pad area
- * for usage by Jim_ScanString to avoid endless allocating and freeing of
- * memory for purpose of string scanning.
- *
- * The error member points to a static allocated string in case of a mal-
- * formed scanformat string or it contains '0' (NULL) in case of a valid
- * parse representation.
- *
- * The whole memory of the internal representation is allocated as a single
- * area of memory that will be internally separated. So freeing and duplicating
- * of such an object is cheap */
-
-typedef struct ScanFmtStringObj {
- jim_wide size; /* Size of internal repr in bytes */
- char *stringRep; /* Original string representation */
- size_t count; /* Number of ScanFmtPartDescr contained */
- size_t convCount; /* Number of conversions that will assign */
- size_t maxPos; /* Max position index if XPG3 is used */
- const char *error; /* Ptr to error text (NULL if no error */
- char *scratch; /* Some scratch pad used by Jim_ScanString */
- ScanFmtPartDescr descr[1]; /* The vector of partial descriptions */
-} ScanFmtStringObj;
-
-
-static void FreeScanFmtInternalRep(Jim_Interp *interp, Jim_Obj *objPtr);
-static void DupScanFmtInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr);
-static void UpdateStringOfScanFmt(Jim_Obj *objPtr);
-
-static Jim_ObjType scanFmtStringObjType = {
- "scanformatstring",
- FreeScanFmtInternalRep,
- DupScanFmtInternalRep,
- UpdateStringOfScanFmt,
- JIM_TYPE_NONE,
-};
-
-void FreeScanFmtInternalRep(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- JIM_NOTUSED(interp);
- Jim_Free((char*)objPtr->internalRep.ptr);
- objPtr->internalRep.ptr = 0;
-}
-
-void DupScanFmtInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr)
-{
- size_t size = (size_t)((ScanFmtStringObj*)srcPtr->internalRep.ptr)->size;
- ScanFmtStringObj *newVec = (ScanFmtStringObj*)Jim_Alloc(size);
-
- JIM_NOTUSED(interp);
- memcpy(newVec, srcPtr->internalRep.ptr, size);
- dupPtr->internalRep.ptr = newVec;
- dupPtr->typePtr = &scanFmtStringObjType;
-}
-
-void UpdateStringOfScanFmt(Jim_Obj *objPtr)
-{
- char *bytes = ((ScanFmtStringObj*)objPtr->internalRep.ptr)->stringRep;
-
- objPtr->bytes = Jim_StrDup(bytes);
- objPtr->length = strlen(bytes);
-}
-
-/* SetScanFmtFromAny will parse a given string and create the internal
- * representation of the format specification. In case of an error
- * the error data member of the internal representation will be set
- * to an descriptive error text and the function will be left with
- * JIM_ERR to indicate unsucessful parsing (aka. malformed scanformat
- * specification */
-
-static int SetScanFmtFromAny(Jim_Interp *interp, Jim_Obj *objPtr)
-{
- ScanFmtStringObj *fmtObj;
- char *buffer;
- int maxCount, i, approxSize, lastPos = -1;
- const char *fmt = objPtr->bytes;
- int maxFmtLen = objPtr->length;
- const char *fmtEnd = fmt + maxFmtLen;
- int curr;
-
- Jim_FreeIntRep(interp, objPtr);
- /* Count how many conversions could take place maximally */
- for (i = 0, maxCount = 0; i < maxFmtLen; ++i)
- if (fmt[i] == '%')
- ++maxCount;
- /* Calculate an approximation of the memory necessary */
- approxSize = sizeof(ScanFmtStringObj) /* Size of the container */
- + (maxCount + 1) * sizeof(ScanFmtPartDescr) /* Size of all partials */
- + maxFmtLen * sizeof(char) + 3 + 1 /* Scratch + "%n" + '\0' */
- + maxFmtLen * sizeof(char) + 1 /* Original stringrep */
- + maxFmtLen * sizeof(char) /* Arg for CHARSETs */
- + (maxCount +1) * sizeof(char) /* '\0' for every partial */
- + 1; /* safety byte */
- fmtObj = (ScanFmtStringObj*)Jim_Alloc(approxSize);
- memset(fmtObj, 0, approxSize);
- fmtObj->size = approxSize;
- fmtObj->maxPos = 0;
- fmtObj->scratch = (char*)&fmtObj->descr[maxCount + 1];
- fmtObj->stringRep = fmtObj->scratch + maxFmtLen + 3 + 1;
- memcpy(fmtObj->stringRep, fmt, maxFmtLen);
- buffer = fmtObj->stringRep + maxFmtLen + 1;
- objPtr->internalRep.ptr = fmtObj;
- objPtr->typePtr = &scanFmtStringObjType;
- for (i = 0, curr = 0; fmt < fmtEnd; ++fmt) {
- int width = 0, skip;
- ScanFmtPartDescr *descr = &fmtObj->descr[curr];
- fmtObj->count++;
- descr->width = 0; /* Assume width unspecified */
- /* Overread and store any "literal" prefix */
- if (*fmt != '%' || fmt[1] == '%') {
- descr->type = 0;
- descr->prefix = &buffer[i];
- for (; fmt < fmtEnd; ++fmt) {
- if (*fmt == '%') {
- if (fmt[1] != '%') break;
- ++fmt;
- }
- buffer[i++] = *fmt;
- }
- buffer[i++] = 0;
- }
- /* Skip the conversion introducing '%' sign */
- ++fmt;
- /* End reached due to non-conversion literal only? */
- if (fmt >= fmtEnd)
- goto done;
- descr->pos = 0; /* Assume "natural" positioning */
- if (*fmt == '*') {
- descr->pos = -1; /* Okay, conversion will not be assigned */
- ++fmt;
- } else
- fmtObj->convCount++; /* Otherwise count as assign-conversion */
- /* Check if next token is a number (could be width or pos */
- if (sscanf(fmt, "%d%n", &width, &skip) == 1) {
- fmt += skip;
- /* Was the number a XPG3 position specifier? */
- if (descr->pos != -1 && *fmt == '$') {
- int prev;
- ++fmt;
- descr->pos = width;
- width = 0;
- /* Look if "natural" postioning and XPG3 one was mixed */
- if ((lastPos == 0 && descr->pos > 0)
- || (lastPos > 0 && descr->pos == 0)) {
- fmtObj->error = "cannot mix \"%\" and \"%n$\" conversion specifiers";
- return JIM_ERR;
- }
- /* Look if this position was already used */
- for (prev = 0; prev < curr; ++prev) {
- if (fmtObj->descr[prev].pos == -1) continue;
- if (fmtObj->descr[prev].pos == descr->pos) {
- fmtObj->error = "same \"%n$\" conversion specifier "
- "used more than once";
- return JIM_ERR;
- }
- }
- /* Try to find a width after the XPG3 specifier */
- if (sscanf(fmt, "%d%n", &width, &skip) == 1) {
- descr->width = width;
- fmt += skip;
- }
- if (descr->pos > 0 && (size_t)descr->pos > fmtObj->maxPos)
- fmtObj->maxPos = descr->pos;
- } else {
- /* Number was not a XPG3, so it has to be a width */
- descr->width = width;
- }
- }
- /* If positioning mode was undetermined yet, fix this */
- if (lastPos == -1)
- lastPos = descr->pos;
- /* Handle CHARSET conversion type ... */
- if (*fmt == '[') {
- int swapped = 1, beg = i, end, j;
- descr->type = '[';
- descr->arg = &buffer[i];
- ++fmt;
- if (*fmt == '^') buffer[i++] = *fmt++;
- if (*fmt == ']') buffer[i++] = *fmt++;
- while (*fmt && *fmt != ']') buffer[i++] = *fmt++;
- if (*fmt != ']') {
- fmtObj->error = "unmatched [ in format string";
- return JIM_ERR;
- }
- end = i;
- buffer[i++] = 0;
- /* In case a range fence was given "backwards", swap it */
- while (swapped) {
- swapped = 0;
- for (j = beg + 1; j < end-1; ++j) {
- if (buffer[j] == '-' && buffer[j-1] > buffer[j + 1]) {
- char tmp = buffer[j-1];
- buffer[j-1] = buffer[j + 1];
- buffer[j + 1] = tmp;
- swapped = 1;
- }
- }
- }
- } else {
- /* Remember any valid modifier if given */
- if (strchr("hlL", *fmt) != 0)
- descr->modifier = tolower((int)*fmt++);
-
- descr->type = *fmt;
- if (strchr("efgcsndoxui", *fmt) == 0) {
- fmtObj->error = "bad scan conversion character";
- return JIM_ERR;
- } else if (*fmt == 'c' && descr->width != 0) {
- fmtObj->error = "field width may not be specified in %c "
- "conversion";
- return JIM_ERR;
- } else if (*fmt == 'u' && descr->modifier == 'l') {
- fmtObj->error = "unsigned wide not supported";
- return JIM_ERR;
- }
- }
- curr++;
- }
-done:
- if (fmtObj->convCount == 0) {
- fmtObj->error = "no any conversion specifier given";
- return JIM_ERR;
- }
- return JIM_OK;
-}
-
-/* Some accessor macros to allow lowlevel access to fields of internal repr */
-
-#define FormatGetCnvCount(_fo_) \
- ((ScanFmtStringObj*)((_fo_)->internalRep.ptr))->convCount
-#define FormatGetMaxPos(_fo_) \
- ((ScanFmtStringObj*)((_fo_)->internalRep.ptr))->maxPos
-#define FormatGetError(_fo_) \
- ((ScanFmtStringObj*)((_fo_)->internalRep.ptr))->error
-
-/* Some Bit testing/setting/cleaning routines. For now only used in handling
- * charsets ([a-z123]) within scanning. Later on perhaps a base for a
- * bitvector implementation in Jim? */
-
-static int JimTestBit(const char *bitvec, char ch)
-{
- div_t pos = div(ch-1, 8);
- return bitvec[pos.quot] & (1 << pos.rem);
-}
-
-static void JimSetBit(char *bitvec, char ch)
-{
- div_t pos = div(ch-1, 8);
- bitvec[pos.quot] |= (1 << pos.rem);
-}
-
-#if 0 /* currently not used */
-static void JimClearBit(char *bitvec, char ch)
-{
- div_t pos = div(ch-1, 8);
- bitvec[pos.quot] &= ~(1 << pos.rem);
-}
-#endif
-
-/* JimScanAString is used to scan an unspecified string that ends with
- * next WS, or a string that is specified via a charset. The charset
- * is currently implemented in a way to only allow for usage with
- * ASCII. Whenever we will switch to UNICODE, another idea has to
- * be born :-/
- *
- * FIXME: Works only with ASCII */
-
-static Jim_Obj *
-JimScanAString(Jim_Interp *interp, const char *sdescr, const char *str)
-{
- size_t i;
- Jim_Obj *result;
- char charset[256/8 + 1]; /* A Charset may contain max 256 chars */
- char *buffer = Jim_Alloc(strlen(str) + 1), *anchor = buffer;
-
- /* First init charset to nothing or all, depending if a specified
- * or an unspecified string has to be parsed */
- memset(charset, (sdescr ? 0 : 255), sizeof(charset));
- if (sdescr) {
- /* There was a set description given, that means we are parsing
- * a specified string. So we have to build a corresponding
- * charset reflecting the description */
- int notFlag = 0;
- /* Should the set be negated at the end? */
- if (*sdescr == '^') {
- notFlag = 1;
- ++sdescr;
- }
- /* Here '-' is meant literally and not to define a range */
- if (*sdescr == '-') {
- JimSetBit(charset, '-');
- ++sdescr;
- }
- while (*sdescr) {
- if (sdescr[1] == '-' && sdescr[2] != 0) {
- /* Handle range definitions */
- int i_t;
- for (i_t = sdescr[0]; i_t <= sdescr[2]; ++i_t)
- JimSetBit(charset, (char)i_t);
- sdescr += 3;
- } else {
- /* Handle verbatim character definitions */
- JimSetBit(charset, *sdescr++);
- }
- }
- /* Negate the charset if there was a NOT given */
- for (i = 0; notFlag && i < sizeof(charset); ++i)
- charset[i] = ~charset[i];
- }
- /* And after all the mess above, the real work begin ... */
- while (str && *str) {
- if (!sdescr && isspace((int)*str))
- break; /* EOS via WS if unspecified */
- if (JimTestBit(charset, *str)) *buffer++ = *str++;
- else break; /* EOS via mismatch if specified scanning */
- }
- *buffer = 0; /* Close the string properly ... */
- result = Jim_NewStringObj(interp, anchor, -1);
- Jim_Free(anchor); /* ... and free it afer usage */
- return result;
-}
-
-/* ScanOneEntry will scan one entry out of the string passed as argument.
- * It use the sscanf() function for this task. After extracting and
- * converting of the value, the count of scanned characters will be
- * returned of -1 in case of no conversion tool place and string was
- * already scanned thru */
-
-static int ScanOneEntry(Jim_Interp *interp, const char *str, long pos,
- ScanFmtStringObj *fmtObj, long index_t, Jim_Obj **valObjPtr)
-{
-# define MAX_SIZE (sizeof(jim_wide) > sizeof(double) \
- ? sizeof(jim_wide) \
- : sizeof(double))
- char buffer[MAX_SIZE];
- char *value = buffer;
- const char *tok;
- const ScanFmtPartDescr *descr = &fmtObj->descr[index_t];
- size_t sLen = strlen(&str[pos]), scanned = 0;
- size_t anchor = pos;
- int i;
-
- /* First pessimiticly assume, we will not scan anything :-) */
- *valObjPtr = 0;
- if (descr->prefix) {
- /* There was a prefix given before the conversion, skip it and adjust
- * the string-to-be-parsed accordingly */
- for (i = 0; str[pos] && descr->prefix[i]; ++i) {
- /* If prefix require, skip WS */
- if (isspace((int)descr->prefix[i]))
- while (str[pos] && isspace((int)str[pos])) ++pos;
- else if (descr->prefix[i] != str[pos])
- break; /* Prefix do not match here, leave the loop */
- else
- ++pos; /* Prefix matched so far, next round */
- }
- if (str[pos] == 0)
- return -1; /* All of str consumed: EOF condition */
- else if (descr->prefix[i] != 0)
- return 0; /* Not whole prefix consumed, no conversion possible */
- }
- /* For all but following conversion, skip leading WS */
- if (descr->type != 'c' && descr->type != '[' && descr->type != 'n')
- while (isspace((int)str[pos])) ++pos;
- /* Determine how much skipped/scanned so far */
- scanned = pos - anchor;
- if (descr->type == 'n') {
- /* Return pseudo conversion means: how much scanned so far? */
- *valObjPtr = Jim_NewIntObj(interp, anchor + scanned);
- } else if (str[pos] == 0) {
- /* Cannot scan anything, as str is totally consumed */
- return -1;
- } else {
- /* Processing of conversions follows ... */
- if (descr->width > 0) {
- /* Do not try to scan as fas as possible but only the given width.
- * To ensure this, we copy the part that should be scanned. */
- size_t tLen = descr->width > sLen ? sLen : descr->width;
- tok = Jim_StrDupLen(&str[pos], tLen);
- } else {
- /* As no width was given, simply refer to the original string */
- tok = &str[pos];
- }
- switch (descr->type) {
- case 'c':
- *valObjPtr = Jim_NewIntObj(interp, *tok);
- scanned += 1;
- break;
- case 'd': case 'o': case 'x': case 'u': case 'i': {
- jim_wide jwvalue = 0;
- long lvalue = 0;
- char *endp; /* Position where the number finished */
- int base = descr->type == 'o' ? 8
- : descr->type == 'x' ? 16
- : descr->type == 'i' ? 0
- : 10;
-
- do {
- /* Try to scan a number with the given base */
- if (descr->modifier == 'l')
- {
-#ifdef HAVE_LONG_LONG_INT
- jwvalue = JimStrtoll(tok, &endp, base),
-#else
- jwvalue = strtol(tok, &endp, base),
-#endif
- memcpy(value, &jwvalue, sizeof(jim_wide));
- }
- else
- {
- if (descr->type == 'u')
- lvalue = strtoul(tok, &endp, base);
- else
- lvalue = strtol(tok, &endp, base);
- memcpy(value, &lvalue, sizeof(lvalue));
- }
- /* If scanning failed, and base was undetermined, simply
- * put it to 10 and try once more. This should catch the
- * case where %i begin to parse a number prefix (e.g.
- * '0x' but no further digits follows. This will be
- * handled as a ZERO followed by a char 'x' by Tcl */
- if (endp == tok && base == 0) base = 10;
- else break;
- } while (1);
- if (endp != tok) {
- /* There was some number sucessfully scanned! */
- if (descr->modifier == 'l')
- *valObjPtr = Jim_NewIntObj(interp, jwvalue);
- else
- *valObjPtr = Jim_NewIntObj(interp, lvalue);
- /* Adjust the number-of-chars scanned so far */
- scanned += endp - tok;
- } else {
- /* Nothing was scanned. We have to determine if this
- * happened due to e.g. prefix mismatch or input str
- * exhausted */
- scanned = *tok ? 0 : -1;
- }
- break;
- }
- case 's': case '[': {
- *valObjPtr = JimScanAString(interp, descr->arg, tok);
- scanned += Jim_Length(*valObjPtr);
- break;
- }
- case 'e': case 'f': case 'g': {
- char *endp;
-
- double dvalue = strtod(tok, &endp);
- memcpy(value, &dvalue, sizeof(double));
- if (endp != tok) {
- /* There was some number sucessfully scanned! */
- *valObjPtr = Jim_NewDoubleObj(interp, dvalue);
- /* Adjust the number-of-chars scanned so far */
- scanned += endp - tok;
- } else {
- /* Nothing was scanned. We have to determine if this
- * happened due to e.g. prefix mismatch or input str
- * exhausted */
- scanned = *tok ? 0 : -1;
- }
- break;
- }
- }
- /* If a substring was allocated (due to pre-defined width) do not
- * forget to free it */
- if (tok != &str[pos])
- Jim_Free((char*)tok);
- }
- return scanned;
-}
-
-/* Jim_ScanString is the workhorse of string scanning. It will scan a given
- * string and returns all converted (and not ignored) values in a list back
- * to the caller. If an error occured, a NULL pointer will be returned */
-
-Jim_Obj *Jim_ScanString(Jim_Interp *interp, Jim_Obj *strObjPtr,
- Jim_Obj *fmtObjPtr, int flags)
-{
- size_t i, pos;
- int scanned = 1;
- const char *str = Jim_GetString(strObjPtr, 0);
- Jim_Obj *resultList = 0;
- Jim_Obj **resultVec =NULL;
- int resultc;
- Jim_Obj *emptyStr = 0;
- ScanFmtStringObj *fmtObj;
-
- /* If format specification is not an object, convert it! */
- if (fmtObjPtr->typePtr != &scanFmtStringObjType)
- SetScanFmtFromAny(interp, fmtObjPtr);
- fmtObj = (ScanFmtStringObj*)fmtObjPtr->internalRep.ptr;
- /* Check if format specification was valid */
- if (fmtObj->error != 0) {
- if (flags & JIM_ERRMSG)
- Jim_SetResultString(interp, fmtObj->error, -1);
- return 0;
- }
- /* Allocate a new "shared" empty string for all unassigned conversions */
- emptyStr = Jim_NewEmptyStringObj(interp);
- Jim_IncrRefCount(emptyStr);
- /* Create a list and fill it with empty strings up to max specified XPG3 */
- resultList = Jim_NewListObj(interp, 0, 0);
- if (fmtObj->maxPos > 0) {
- for (i = 0; i < fmtObj->maxPos; ++i)
- Jim_ListAppendElement(interp, resultList, emptyStr);
- JimListGetElements(interp, resultList, &resultc, &resultVec);
- }
- /* Now handle every partial format description */
- for (i = 0, pos = 0; i < fmtObj->count; ++i) {
- ScanFmtPartDescr *descr = &(fmtObj->descr[i]);
- Jim_Obj *value = 0;
- /* Only last type may be "literal" w/o conversion - skip it! */
- if (descr->type == 0) continue;
- /* As long as any conversion could be done, we will proceed */
- if (scanned > 0)
- scanned = ScanOneEntry(interp, str, pos, fmtObj, i, &value);
- /* In case our first try results in EOF, we will leave */
- if (scanned == -1 && i == 0)
- goto eof;
- /* Advance next pos-to-be-scanned for the amount scanned already */
- pos += scanned;
- /* value == 0 means no conversion took place so take empty string */
- if (value == 0)
- value = Jim_NewEmptyStringObj(interp);
- /* If value is a non-assignable one, skip it */
- if (descr->pos == -1) {
- Jim_FreeNewObj(interp, value);
- } else if (descr->pos == 0)
- /* Otherwise append it to the result list if no XPG3 was given */
- Jim_ListAppendElement(interp, resultList, value);
- else if (resultVec[descr->pos-1] == emptyStr) {
- /* But due to given XPG3, put the value into the corr. slot */
- Jim_DecrRefCount(interp, resultVec[descr->pos-1]);
- Jim_IncrRefCount(value);
- resultVec[descr->pos-1] = value;
- } else {
- /* Otherwise, the slot was already used - free obj and ERROR */
- Jim_FreeNewObj(interp, value);
- goto err;
- }
- }
- Jim_DecrRefCount(interp, emptyStr);
- return resultList;
-eof:
- Jim_DecrRefCount(interp, emptyStr);
- Jim_FreeNewObj(interp, resultList);
- return (Jim_Obj*)EOF;
-err:
- Jim_DecrRefCount(interp, emptyStr);
- Jim_FreeNewObj(interp, resultList);
- return 0;
-}
-
-/* -----------------------------------------------------------------------------
- * Pseudo Random Number Generation
- * ---------------------------------------------------------------------------*/
-static void JimPrngSeed(Jim_Interp *interp, const unsigned char *seed,
- int seedLen);
-
-/* Initialize the sbox with the numbers from 0 to 255 */
-static void JimPrngInit(Jim_Interp *interp)
-{
- int i;
- unsigned int seed[256];
-
- interp->prngState = Jim_Alloc(sizeof(Jim_PrngState));
- for (i = 0; i < 256; i++)
- seed[i] = (rand() ^ time(NULL) ^ clock());
- JimPrngSeed(interp, (unsigned char*) seed, sizeof(int)*256);
-}
-
-/* Generates N bytes of random data */
-static void JimRandomBytes(Jim_Interp *interp, void *dest, unsigned int len)
-{
- Jim_PrngState *prng;
- unsigned char *destByte = (unsigned char*) dest;
- unsigned int si, sj, x;
-
- /* initialization, only needed the first time */
- if (interp->prngState == NULL)
- JimPrngInit(interp);
- prng = interp->prngState;
- /* generates 'len' bytes of pseudo-random numbers */
- for (x = 0; x < len; x++) {
- prng->i = (prng->i + 1) & 0xff;
- si = prng->sbox[prng->i];
- prng->j = (prng->j + si) & 0xff;
- sj = prng->sbox[prng->j];
- prng->sbox[prng->i] = sj;
- prng->sbox[prng->j] = si;
- *destByte++ = prng->sbox[(si + sj)&0xff];
- }
-}
-
-/* Re-seed the generator with user-provided bytes */
-static void JimPrngSeed(Jim_Interp *interp, const unsigned char *seed,
- int seedLen)
-{
- int i;
- unsigned char buf[256];
- Jim_PrngState *prng;
-
- /* initialization, only needed the first time */
- if (interp->prngState == NULL)
- JimPrngInit(interp);
- prng = interp->prngState;
-
- /* Set the sbox[i] with i */
- for (i = 0; i < 256; i++)
- prng->sbox[i] = i;
- /* Now use the seed to perform a random permutation of the sbox */
- for (i = 0; i < seedLen; i++) {
- unsigned char t;
-
- t = prng->sbox[i&0xFF];
- prng->sbox[i&0xFF] = prng->sbox[seed[i]];
- prng->sbox[seed[i]] = t;
- }
- prng->i = prng->j = 0;
- /* discard the first 256 bytes of stream. */
- JimRandomBytes(interp, buf, 256);
-}
-
-/* -----------------------------------------------------------------------------
- * Dynamic libraries support (WIN32 not supported)
- * ---------------------------------------------------------------------------*/
-
-#ifdef JIM_DYNLIB
-#ifdef WIN32
-#define RTLD_LAZY 0
-void * dlopen(const char *path, int mode)
-{
- JIM_NOTUSED(mode);
-
- return (void *)LoadLibraryA(path);
-}
-int dlclose(void *handle)
-{
- FreeLibrary((HANDLE)handle);
- return 0;
-}
-void *dlsym(void *handle, const char *symbol)
-{
- return GetProcAddress((HMODULE)handle, symbol);
-}
-static char win32_dlerror_string[121];
-const char *dlerror(void)
-{
- FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(),
- LANG_NEUTRAL, win32_dlerror_string, 120, NULL);
- return win32_dlerror_string;
-}
-#endif /* WIN32 */
-
-int Jim_LoadLibrary(Jim_Interp *interp, const char *pathName)
-{
- Jim_Obj *libPathObjPtr;
- int prefixc, i;
- void *handle;
- int (*onload)(Jim_Interp *interp);
-
- libPathObjPtr = Jim_GetGlobalVariableStr(interp, "jim_libpath", JIM_NONE);
- if (libPathObjPtr == NULL) {
- prefixc = 0;
- libPathObjPtr = NULL;
- } else {
- Jim_IncrRefCount(libPathObjPtr);
- Jim_ListLength(interp, libPathObjPtr, &prefixc);
- }
-
- for (i = -1; i < prefixc; i++) {
- if (i < 0) {
- handle = dlopen(pathName, RTLD_LAZY);
- } else {
- FILE *fp;
- char buf[JIM_PATH_LEN];
- const char *prefix;
- int prefixlen;
- Jim_Obj *prefixObjPtr;
-
- buf[0] = '\0';
- if (Jim_ListIndex(interp, libPathObjPtr, i,
- &prefixObjPtr, JIM_NONE) != JIM_OK)
- continue;
- prefix = Jim_GetString(prefixObjPtr, &prefixlen);
- if (prefixlen + strlen(pathName) + 1 >= JIM_PATH_LEN)
- continue;
- if (*pathName == '/') {
- strcpy(buf, pathName);
- }
- else if (prefixlen && prefix[prefixlen-1] == '/')
- sprintf(buf, "%s%s", prefix, pathName);
- else
- sprintf(buf, "%s/%s", prefix, pathName);
- fp = fopen(buf, "r");
- if (fp == NULL)
- continue;
- fclose(fp);
- handle = dlopen(buf, RTLD_LAZY);
- }
- if (handle == NULL) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "error loading extension \"", pathName,
- "\": ", dlerror(), NULL);
- if (i < 0)
- continue;
- goto err;
- }
- if ((onload = dlsym(handle, "Jim_OnLoad")) == NULL) {
- Jim_SetResultString(interp,
- "No Jim_OnLoad symbol found on extension", -1);
- goto err;
- }
- if (onload(interp) == JIM_ERR) {
- dlclose(handle);
- goto err;
- }
- Jim_SetEmptyResult(interp);
- if (libPathObjPtr != NULL)
- Jim_DecrRefCount(interp, libPathObjPtr);
- return JIM_OK;
- }
-err:
- if (libPathObjPtr != NULL)
- Jim_DecrRefCount(interp, libPathObjPtr);
- return JIM_ERR;
-}
-#else /* JIM_DYNLIB */
-int Jim_LoadLibrary(Jim_Interp *interp, const char *pathName)
-{
- JIM_NOTUSED(interp);
- JIM_NOTUSED(pathName);
-
- Jim_SetResultString(interp, "the Jim binary has no support for [load]", -1);
- return JIM_ERR;
-}
-#endif/* JIM_DYNLIB */
-
-/* -----------------------------------------------------------------------------
- * Packages handling
- * ---------------------------------------------------------------------------*/
-
-#define JIM_PKG_ANY_VERSION -1
-
-/* Convert a string of the type "1.2" into an integer.
- * MAJOR.MINOR is converted as MAJOR*100 + MINOR, so "1.2" is converted
- * to the integer with value 102 */
-static int JimPackageVersionToInt(Jim_Interp *interp, const char *v,
- int *intPtr, int flags)
-{
- char *copy;
- jim_wide major, minor;
- char *majorStr, *minorStr, *p;
-
- if (v[0] == '\0') {
- *intPtr = JIM_PKG_ANY_VERSION;
- return JIM_OK;
- }
-
- copy = Jim_StrDup(v);
- p = strchr(copy, '.');
- if (p == NULL) goto badfmt;
- *p = '\0';
- majorStr = copy;
- minorStr = p + 1;
-
- if (Jim_StringToWide(majorStr, &major, 10) != JIM_OK ||
- Jim_StringToWide(minorStr, &minor, 10) != JIM_OK)
- goto badfmt;
- *intPtr = (int)(major*100 + minor);
- Jim_Free(copy);
- return JIM_OK;
-
-badfmt:
- Jim_Free(copy);
- if (flags & JIM_ERRMSG) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "invalid package version '", v, "'", NULL);
- }
- return JIM_ERR;
-}
-
-#define JIM_MATCHVER_EXACT (1 << JIM_PRIV_FLAG_SHIFT)
-static int JimPackageMatchVersion(int needed, int actual, int flags)
-{
- if (needed == JIM_PKG_ANY_VERSION) return 1;
- if (flags & JIM_MATCHVER_EXACT) {
- return needed == actual;
- } else {
- return needed/100 == actual/100 && (needed <= actual);
- }
-}
-
-int Jim_PackageProvide(Jim_Interp *interp, const char *name, const char *ver,
- int flags)
-{
- int intVersion;
- /* Check if the version format is ok */
- if (JimPackageVersionToInt(interp, ver, &intVersion, JIM_ERRMSG) != JIM_OK)
- return JIM_ERR;
- /* If the package was already provided returns an error. */
- if (Jim_FindHashEntry(&interp->packages, name) != NULL) {
- if (flags & JIM_ERRMSG) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "package '", name, "' was already provided", NULL);
- }
- return JIM_ERR;
- }
- Jim_AddHashEntry(&interp->packages, name, (char*) ver);
- return JIM_OK;
-}
-
-#ifndef JIM_ANSIC
-
-#ifndef WIN32
-# include <sys/types.h>
-# include <dirent.h>
-#else
-# include <io.h>
-/* Posix dirent.h compatiblity layer for WIN32.
- * Copyright Kevlin Henney, 1997, 2003. All rights reserved.
- * Copyright Salvatore Sanfilippo ,2005.
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose is hereby granted without fee, provided
- * that this copyright and permissions notice appear in all copies and
- * derivatives.
- *
- * This software is supplied "as is" without express or implied warranty.
- * This software was modified by Salvatore Sanfilippo for the Jim Interpreter.
- */
-
-struct dirent {
- char *d_name;
-};
-
-typedef struct DIR {
- long handle; /* -1 for failed rewind */
- struct _finddata_t info;
- struct dirent result; /* d_name null iff first time */
- char *name; /* null-terminated char string */
-} DIR;
-
-DIR *opendir(const char *name)
-{
- DIR *dir = 0;
-
- if (name && name[0]) {
- size_t base_length = strlen(name);
- const char *all = /* search pattern must end with suitable wildcard */
- strchr("/\\", name[base_length - 1]) ? "*" : "/*";
-
- if ((dir = (DIR *) Jim_Alloc(sizeof *dir)) != 0 &&
- (dir->name = (char *) Jim_Alloc(base_length + strlen(all) + 1)) != 0)
- {
- strcat(strcpy(dir->name, name), all);
-
- if ((dir->handle = (long) _findfirst(dir->name, &dir->info)) != -1)
- dir->result.d_name = 0;
- else { /* rollback */
- Jim_Free(dir->name);
- Jim_Free(dir);
- dir = 0;
- }
- } else { /* rollback */
- Jim_Free(dir);
- dir = 0;
- errno = ENOMEM;
- }
- } else {
- errno = EINVAL;
- }
- return dir;
-}
-
-int closedir(DIR *dir)
-{
- int result = -1;
-
- if (dir) {
- if (dir->handle != -1)
- result = _findclose(dir->handle);
- Jim_Free(dir->name);
- Jim_Free(dir);
- }
- if (result == -1) /* map all errors to EBADF */
- errno = EBADF;
- return result;
-}
-
-struct dirent *readdir(DIR *dir)
-{
- struct dirent *result = 0;
-
- if (dir && dir->handle != -1) {
- if (!dir->result.d_name || _findnext(dir->handle, &dir->info) != -1) {
- result = &dir->result;
- result->d_name = dir->info.name;
- }
- } else {
- errno = EBADF;
- }
- return result;
-}
-
-#endif /* WIN32 */
-
-static char *JimFindBestPackage(Jim_Interp *interp, char **prefixes,
- int prefixc, const char *pkgName, int pkgVer, int flags)
-{
- int bestVer = -1, i;
- int pkgNameLen = strlen(pkgName);
- char *bestPackage = NULL;
- struct dirent *de;
-
- for (i = 0; i < prefixc; i++) {
- DIR *dir;
- char buf[JIM_PATH_LEN];
- int prefixLen;
-
- if (prefixes[i] == NULL) continue;
- strncpy(buf, prefixes[i], JIM_PATH_LEN);
- buf[JIM_PATH_LEN-1] = '\0';
- prefixLen = strlen(buf);
- if (prefixLen && buf[prefixLen-1] == '/')
- buf[prefixLen-1] = '\0';
-
- if ((dir = opendir(buf)) == NULL) continue;
- while ((de = readdir(dir)) != NULL) {
- char *fileName = de->d_name;
- int fileNameLen = strlen(fileName);
-
- if (strncmp(fileName, "jim-", 4) == 0 &&
- strncmp(fileName + 4, pkgName, pkgNameLen) == 0 &&
- *(fileName + 4+pkgNameLen) == '-' &&
- fileNameLen > 4 && /* note that this is not really useful */
- (strncmp(fileName + fileNameLen-4, ".tcl", 4) == 0 ||
- strncmp(fileName + fileNameLen-4, ".dll", 4) == 0 ||
- strncmp(fileName + fileNameLen-3, ".so", 3) == 0))
- {
- char ver[6]; /* xx.yy < nulterm> */
- char *p = strrchr(fileName, '.');
- int verLen, fileVer;
-
- verLen = p - (fileName + 4+pkgNameLen + 1);
- if (verLen < 3 || verLen > 5) continue;
- memcpy(ver, fileName + 4+pkgNameLen + 1, verLen);
- ver[verLen] = '\0';
- if (JimPackageVersionToInt(interp, ver, &fileVer, JIM_NONE)
- != JIM_OK) continue;
- if (JimPackageMatchVersion(pkgVer, fileVer, flags) &&
- (bestVer == -1 || bestVer < fileVer))
- {
- bestVer = fileVer;
- Jim_Free(bestPackage);
- bestPackage = Jim_Alloc(strlen(buf) + strlen(fileName) + 2);
- sprintf(bestPackage, "%s/%s", buf, fileName);
- }
- }
- }
- closedir(dir);
- }
- return bestPackage;
-}
-
-#else /* JIM_ANSIC */
-
-static char *JimFindBestPackage(Jim_Interp *interp, char **prefixes,
- int prefixc, const char *pkgName, int pkgVer, int flags)
-{
- JIM_NOTUSED(interp);
- JIM_NOTUSED(prefixes);
- JIM_NOTUSED(prefixc);
- JIM_NOTUSED(pkgName);
- JIM_NOTUSED(pkgVer);
- JIM_NOTUSED(flags);
- return NULL;
-}
-
-#endif /* JIM_ANSIC */
-
-/* Search for a suitable package under every dir specified by jim_libpath
- * and load it if possible. If a suitable package was loaded with success
- * JIM_OK is returned, otherwise JIM_ERR is returned. */
-static int JimLoadPackage(Jim_Interp *interp, const char *name, int ver,
- int flags)
-{
- Jim_Obj *libPathObjPtr;
- char **prefixes, *best;
- int prefixc, i, retCode = JIM_OK;
-
- libPathObjPtr = Jim_GetGlobalVariableStr(interp, "jim_libpath", JIM_NONE);
- if (libPathObjPtr == NULL) {
- prefixc = 0;
- libPathObjPtr = NULL;
- } else {
- Jim_IncrRefCount(libPathObjPtr);
- Jim_ListLength(interp, libPathObjPtr, &prefixc);
- }
-
- prefixes = Jim_Alloc(sizeof(char*)*prefixc);
- for (i = 0; i < prefixc; i++) {
- Jim_Obj *prefixObjPtr;
- if (Jim_ListIndex(interp, libPathObjPtr, i,
- &prefixObjPtr, JIM_NONE) != JIM_OK)
- {
- prefixes[i] = NULL;
- continue;
- }
- prefixes[i] = Jim_StrDup(Jim_GetString(prefixObjPtr, NULL));
- }
- /* Scan every directory to find the "best" package. */
- best = JimFindBestPackage(interp, prefixes, prefixc, name, ver, flags);
- if (best != NULL) {
- char *p = strrchr(best, '.');
- /* Try to load/source it */
- if (p && strcmp(p, ".tcl") == 0) {
- retCode = Jim_EvalFile(interp, best);
- } else {
- retCode = Jim_LoadLibrary(interp, best);
- }
- } else {
- retCode = JIM_ERR;
- }
- Jim_Free(best);
- for (i = 0; i < prefixc; i++)
- Jim_Free(prefixes[i]);
- Jim_Free(prefixes);
- if (libPathObjPtr)
- Jim_DecrRefCount(interp, libPathObjPtr);
- return retCode;
-}
-
-const char *Jim_PackageRequire(Jim_Interp *interp, const char *name,
- const char *ver, int flags)
-{
- Jim_HashEntry *he;
- int requiredVer;
-
- /* Start with an empty error string */
- Jim_SetResultString(interp, "", 0);
-
- if (JimPackageVersionToInt(interp, ver, &requiredVer, JIM_ERRMSG) != JIM_OK)
- return NULL;
- he = Jim_FindHashEntry(&interp->packages, name);
- if (he == NULL) {
- /* Try to load the package. */
- if (JimLoadPackage(interp, name, requiredVer, flags) == JIM_OK) {
- he = Jim_FindHashEntry(&interp->packages, name);
- if (he == NULL) {
- return "?";
- }
- return he->val;
- }
- /* No way... return an error. */
- if (flags & JIM_ERRMSG) {
- int len;
- Jim_GetString(Jim_GetResult(interp), &len);
- Jim_AppendStrings(interp, Jim_GetResult(interp), len ? "\n" : "",
- "Can't find package '", name, "'", NULL);
- }
- return NULL;
- } else {
- int actualVer;
- if (JimPackageVersionToInt(interp, he->val, &actualVer, JIM_ERRMSG)
- != JIM_OK)
- {
- return NULL;
- }
- /* Check if version matches. */
- if (JimPackageMatchVersion(requiredVer, actualVer, flags) == 0) {
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "Package '", name, "' already loaded, but with version ",
- he->val, NULL);
- return NULL;
- }
- return he->val;
- }
-}
-
-/* -----------------------------------------------------------------------------
- * Eval
- * ---------------------------------------------------------------------------*/
-#define JIM_EVAL_SARGV_LEN 8 /* static arguments vector length */
-#define JIM_EVAL_SINTV_LEN 8 /* static interpolation vector length */
-
-static int JimCallProcedure(Jim_Interp *interp, Jim_Cmd *cmd, int argc,
- Jim_Obj *const *argv);
-
-/* Handle calls to the [unknown] command */
-static int JimUnknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
-{
- Jim_Obj **v, *sv[JIM_EVAL_SARGV_LEN];
- int retCode;
-
- /* If JimUnknown() is recursively called (e.g. error in the unknown proc,
- * done here
- */
- if (interp->unknown_called) {
- return JIM_ERR;
- }
-
- /* If the [unknown] command does not exists returns
- * just now */
- if (Jim_GetCommand(interp, interp->unknown, JIM_NONE) == NULL)
- return JIM_ERR;
-
- /* The object interp->unknown just contains
- * the "unknown" string, it is used in order to
- * avoid to lookup the unknown command every time
- * but instread to cache the result. */
- if (argc + 1 <= JIM_EVAL_SARGV_LEN)
- v = sv;
- else
- v = Jim_Alloc(sizeof(Jim_Obj*)*(argc + 1));
- /* Make a copy of the arguments vector, but shifted on
- * the right of one position. The command name of the
- * command will be instead the first argument of the
- * [unknonw] call. */
- memcpy(v + 1, argv, sizeof(Jim_Obj*)*argc);
- v[0] = interp->unknown;
- /* Call it */
- interp->unknown_called++;
- retCode = Jim_EvalObjVector(interp, argc + 1, v);
- interp->unknown_called--;
-
- /* Clean up */
- if (v != sv)
- Jim_Free(v);
- return retCode;
-}
-
-/* Eval the object vector 'objv' composed of 'objc' elements.
- * Every element is used as single argument.
- * Jim_EvalObj() will call this function every time its object
- * argument is of "list" type, with no string representation.
- *
- * This is possible because the string representation of a
- * list object generated by the UpdateStringOfList is made
- * in a way that ensures that every list element is a different
- * command argument. */
-int Jim_EvalObjVector(Jim_Interp *interp, int objc, Jim_Obj *const *objv)
-{
- int i, retcode;
- Jim_Cmd *cmdPtr;
-
- /* Incr refcount of arguments. */
- for (i = 0; i < objc; i++)
- Jim_IncrRefCount(objv[i]);
- /* Command lookup */
- cmdPtr = Jim_GetCommand(interp, objv[0], JIM_ERRMSG);
- if (cmdPtr == NULL) {
- retcode = JimUnknown(interp, objc, objv);
- } else {
- /* Call it -- Make sure result is an empty object. */
- Jim_SetEmptyResult(interp);
- if (cmdPtr->cmdProc) {
- interp->cmdPrivData = cmdPtr->privData;
- retcode = cmdPtr->cmdProc(interp, objc, objv);
- if (retcode == JIM_ERR_ADDSTACK) {
- //JimAppendStackTrace(interp, "", script->fileName, token[i-argc*2].linenr);
- retcode = JIM_ERR;
- }
- } else {
- retcode = JimCallProcedure(interp, cmdPtr, objc, objv);
- if (retcode == JIM_ERR) {
- JimAppendStackTrace(interp,
- Jim_GetString(objv[0], NULL), "", 1);
- }
- }
- }
- /* Decr refcount of arguments and return the retcode */
- for (i = 0; i < objc; i++)
- Jim_DecrRefCount(interp, objv[i]);
- return retcode;
-}
-
-/* Interpolate the given tokens into a unique Jim_Obj returned by reference
- * via *objPtrPtr. This function is only called by Jim_EvalObj().
- * The returned object has refcount = 0. */
-int Jim_InterpolateTokens(Jim_Interp *interp, ScriptToken *token,
- int tokens, Jim_Obj **objPtrPtr)
-{
- int totlen = 0, i, retcode;
- Jim_Obj **intv;
- Jim_Obj *sintv[JIM_EVAL_SINTV_LEN];
- Jim_Obj *objPtr;
- char *s;
-
- if (tokens <= JIM_EVAL_SINTV_LEN)
- intv = sintv;
- else
- intv = Jim_Alloc(sizeof(Jim_Obj*)*
- tokens);
- /* Compute every token forming the argument
- * in the intv objects vector. */
- for (i = 0; i < tokens; i++) {
- switch (token[i].type) {
- case JIM_TT_ESC:
- case JIM_TT_STR:
- intv[i] = token[i].objPtr;
- break;
- case JIM_TT_VAR:
- intv[i] = Jim_GetVariable(interp, token[i].objPtr, JIM_ERRMSG);
- if (!intv[i]) {
- retcode = JIM_ERR;
- goto err;
- }
- break;
- case JIM_TT_DICTSUGAR:
- intv[i] = Jim_ExpandDictSugar(interp, token[i].objPtr);
- if (!intv[i]) {
- retcode = JIM_ERR;
- goto err;
- }
- break;
- case JIM_TT_CMD:
- retcode = Jim_EvalObj(interp, token[i].objPtr);
- if (retcode != JIM_OK)
- goto err;
- intv[i] = Jim_GetResult(interp);
- break;
- default:
- Jim_Panic(interp,
- "default token type reached "
- "in Jim_InterpolateTokens().");
- break;
- }
- Jim_IncrRefCount(intv[i]);
- /* Make sure there is a valid
- * string rep, and add the string
- * length to the total legnth. */
- Jim_GetString(intv[i], NULL);
- totlen += intv[i]->length;
- }
- /* Concatenate every token in an unique
- * object. */
- objPtr = Jim_NewStringObjNoAlloc(interp,
- NULL, 0);
- s = objPtr->bytes = Jim_Alloc(totlen + 1);
- objPtr->length = totlen;
- for (i = 0; i < tokens; i++) {
- memcpy(s, intv[i]->bytes, intv[i]->length);
- s += intv[i]->length;
- Jim_DecrRefCount(interp, intv[i]);
- }
- objPtr->bytes[totlen] = '\0';
- /* Free the intv vector if not static. */
- if (tokens > JIM_EVAL_SINTV_LEN)
- Jim_Free(intv);
- *objPtrPtr = objPtr;
- return JIM_OK;
-err:
- i--;
- for (; i >= 0; i--)
- Jim_DecrRefCount(interp, intv[i]);
- if (tokens > JIM_EVAL_SINTV_LEN)
- Jim_Free(intv);
- return retcode;
-}
-
-/* Helper of Jim_EvalObj() to perform argument expansion.
- * Basically this function append an argument to 'argv'
- * (and increments argc by reference accordingly), performing
- * expansion of the list object if 'expand' is non-zero, or
- * just adding objPtr to argv if 'expand' is zero. */
-void Jim_ExpandArgument(Jim_Interp *interp, Jim_Obj ***argv,
- int *argcPtr, int expand, Jim_Obj *objPtr)
-{
- if (!expand) {
- (*argv) = Jim_Realloc(*argv, sizeof(Jim_Obj*)*((*argcPtr) + 1));
- /* refcount of objPtr not incremented because
- * we are actually transfering a reference from
- * the old 'argv' to the expanded one. */
- (*argv)[*argcPtr] = objPtr;
- (*argcPtr)++;
- } else {
- int len, i;
-
- Jim_ListLength(interp, objPtr, &len);
- (*argv) = Jim_Realloc(*argv, sizeof(Jim_Obj*)*((*argcPtr) + len));
- for (i = 0; i < len; i++) {
- (*argv)[*argcPtr] = objPtr->internalRep.listValue.ele[i];
- Jim_IncrRefCount(objPtr->internalRep.listValue.ele[i]);
- (*argcPtr)++;
- }
- /* The original object reference is no longer needed,
- * after the expansion it is no longer present on
- * the argument vector, but the single elements are
- * in its place. */
- Jim_DecrRefCount(interp, objPtr);
- }
-}
-
-int Jim_EvalObj(Jim_Interp *interp, Jim_Obj *scriptObjPtr)
-{
- int i, j = 0, len;
- ScriptObj *script;
- ScriptToken *token;
- int *cs; /* command structure array */
- int retcode = JIM_OK;
- Jim_Obj *sargv[JIM_EVAL_SARGV_LEN], **argv = NULL, *tmpObjPtr;
-
- interp->errorFlag = 0;
-
- /* If the object is of type "list" and there is no
- * string representation for this object, we can call
- * a specialized version of Jim_EvalObj() */
- if (scriptObjPtr->typePtr == &listObjType &&
- scriptObjPtr->internalRep.listValue.len &&
- scriptObjPtr->bytes == NULL) {
- Jim_IncrRefCount(scriptObjPtr);
- retcode = Jim_EvalObjVector(interp,
- scriptObjPtr->internalRep.listValue.len,
- scriptObjPtr->internalRep.listValue.ele);
- Jim_DecrRefCount(interp, scriptObjPtr);
- return retcode;
- }
-
- Jim_IncrRefCount(scriptObjPtr); /* Make sure it's shared. */
- script = Jim_GetScript(interp, scriptObjPtr);
- /* Now we have to make sure the internal repr will not be
- * freed on shimmering.
- *
- * Think for example to this:
- *
- * set x {llength $x; ... some more code ...}; eval $x
- *
- * In order to preserve the internal rep, we increment the
- * inUse field of the script internal rep structure. */
- script->inUse++;
-
- token = script->token;
- len = script->len;
- cs = script->cmdStruct;
- i = 0; /* 'i' is the current token index. */
-
- /* Reset the interpreter result. This is useful to
- * return the emtpy result in the case of empty program. */
- Jim_SetEmptyResult(interp);
-
- /* Execute every command sequentially, returns on
- * error (i.e. if a command does not return JIM_OK) */
- while (i < len) {
- int expand = 0;
- int argc = *cs++; /* Get the number of arguments */
- Jim_Cmd *cmd;
-
- /* Set the expand flag if needed. */
- if (argc == -1) {
- expand++;
- argc = *cs++;
- }
- /* Allocate the arguments vector */
- if (argc <= JIM_EVAL_SARGV_LEN)
- argv = sargv;
- else
- argv = Jim_Alloc(sizeof(Jim_Obj*)*argc);
- /* Populate the arguments objects. */
- for (j = 0; j < argc; j++) {
- int tokens = *cs++;
-
- /* tokens is negative if expansion is needed.
- * for this argument. */
- if (tokens < 0) {
- tokens = (-tokens)-1;
- i++;
- }
- if (tokens == 1) {
- /* Fast path if the token does not
- * need interpolation */
- switch (token[i].type) {
- case JIM_TT_ESC:
- case JIM_TT_STR:
- argv[j] = token[i].objPtr;
- break;
- case JIM_TT_VAR:
- tmpObjPtr = Jim_GetVariable(interp, token[i].objPtr,
- JIM_ERRMSG);
- if (!tmpObjPtr) {
- retcode = JIM_ERR;
- goto err;
- }
- argv[j] = tmpObjPtr;
- break;
- case JIM_TT_DICTSUGAR:
- tmpObjPtr = Jim_ExpandDictSugar(interp, token[i].objPtr);
- if (!tmpObjPtr) {
- retcode = JIM_ERR;
- goto err;
- }
- argv[j] = tmpObjPtr;
- break;
- case JIM_TT_CMD:
- retcode = Jim_EvalObj(interp, token[i].objPtr);
- if (retcode != JIM_OK)
- goto err;
- argv[j] = Jim_GetResult(interp);
- break;
- default:
- Jim_Panic(interp,
- "default token type reached "
- "in Jim_EvalObj().");
- break;
- }
- Jim_IncrRefCount(argv[j]);
- i += 2;
- } else {
- /* For interpolation we call an helper
- * function doing the work for us. */
- if ((retcode = Jim_InterpolateTokens(interp,
- token + i, tokens, &tmpObjPtr)) != JIM_OK)
- {
- goto err;
- }
- argv[j] = tmpObjPtr;
- Jim_IncrRefCount(argv[j]);
- i += tokens + 1;
- }
- }
- /* Handle {expand} expansion */
- if (expand) {
- int *ecs = cs - argc;
- int eargc = 0;
- Jim_Obj **eargv = NULL;
-
- for (j = 0; j < argc; j++) {
- Jim_ExpandArgument(interp, &eargv, &eargc,
- ecs[j] < 0, argv[j]);
- }
- if (argv != sargv)
- Jim_Free(argv);
- argc = eargc;
- argv = eargv;
- j = argc;
- if (argc == 0) {
- /* Nothing to do with zero args. */
- Jim_Free(eargv);
- continue;
- }
- }
- /* Lookup the command to call */
- cmd = Jim_GetCommand(interp, argv[0], JIM_ERRMSG);
- if (cmd != NULL) {
- /* Call it -- Make sure result is an empty object. */
- Jim_SetEmptyResult(interp);
- if (cmd->cmdProc) {
- interp->cmdPrivData = cmd->privData;
- retcode = cmd->cmdProc(interp, argc, argv);
- if ((retcode == JIM_ERR)||(retcode == JIM_ERR_ADDSTACK)) {
- JimAppendStackTrace(interp, "", script->fileName, token[i-argc*2].linenr);
- retcode = JIM_ERR;
- }
- } else {
- retcode = JimCallProcedure(interp, cmd, argc, argv);
- if (retcode == JIM_ERR) {
- JimAppendStackTrace(interp,
- Jim_GetString(argv[0], NULL), script->fileName,
- token[i-argc*2].linenr);
- }
- }
- } else {
- /* Call [unknown] */
- retcode = JimUnknown(interp, argc, argv);
- if (retcode == JIM_ERR) {
- JimAppendStackTrace(interp,
- "", script->fileName,
- token[i-argc*2].linenr);
- }
- }
- if (retcode != JIM_OK) {
- i -= argc*2; /* point to the command name. */
- goto err;
- }
- /* Decrement the arguments count */
- for (j = 0; j < argc; j++) {
- Jim_DecrRefCount(interp, argv[j]);
- }
-
- if (argv != sargv) {
- Jim_Free(argv);
- argv = NULL;
- }
- }
- /* Note that we don't have to decrement inUse, because the
- * following code transfers our use of the reference again to
- * the script object. */
- j = 0; /* on normal termination, the argv array is already
- Jim_DecrRefCount-ed. */
-err:
- /* Handle errors. */
- if (retcode == JIM_ERR && !interp->errorFlag) {
- interp->errorFlag = 1;
- JimSetErrorFileName(interp, script->fileName);
- JimSetErrorLineNumber(interp, token[i].linenr);
- JimResetStackTrace(interp);
- }
- Jim_FreeIntRep(interp, scriptObjPtr);
- scriptObjPtr->typePtr = &scriptObjType;
- Jim_SetIntRepPtr(scriptObjPtr, script);
- Jim_DecrRefCount(interp, scriptObjPtr);
- for (i = 0; i < j; i++) {
- Jim_DecrRefCount(interp, argv[i]);
- }
- if (argv != sargv)
- Jim_Free(argv);
- return retcode;
-}
-
-/* Call a procedure implemented in Tcl.
- * It's possible to speed-up a lot this function, currently
- * the callframes are not cached, but allocated and
- * destroied every time. What is expecially costly is
- * to create/destroy the local vars hash table every time.
- *
- * This can be fixed just implementing callframes caching
- * in JimCreateCallFrame() and JimFreeCallFrame(). */
-int JimCallProcedure(Jim_Interp *interp, Jim_Cmd *cmd, int argc,
- Jim_Obj *const *argv)
-{
- int i, retcode;
- Jim_CallFrame *callFramePtr;
- int num_args;
-
- /* Check arity */
- if (argc < cmd->arityMin || (cmd->arityMax != -1 &&
- argc > cmd->arityMax)) {
- Jim_Obj *objPtr = Jim_NewEmptyStringObj(interp);
- Jim_AppendStrings(interp, objPtr,
- "wrong # args: should be \"", Jim_GetString(argv[0], NULL),
- (cmd->arityMin > 1) ? " " : "",
- Jim_GetString(cmd->argListObjPtr, NULL), "\"", NULL);
- Jim_SetResult(interp, objPtr);
- return JIM_ERR;
- }
- /* Check if there are too nested calls */
- if (interp->numLevels == interp->maxNestingDepth) {
- Jim_SetResultString(interp,
- "Too many nested calls. Infinite recursion?", -1);
- return JIM_ERR;
- }
- /* Create a new callframe */
- callFramePtr = JimCreateCallFrame(interp);
- callFramePtr->parentCallFrame = interp->framePtr;
- callFramePtr->argv = argv;
- callFramePtr->argc = argc;
- callFramePtr->procArgsObjPtr = cmd->argListObjPtr;
- callFramePtr->procBodyObjPtr = cmd->bodyObjPtr;
- callFramePtr->staticVars = cmd->staticVars;
- Jim_IncrRefCount(cmd->argListObjPtr);
- Jim_IncrRefCount(cmd->bodyObjPtr);
- interp->framePtr = callFramePtr;
- interp->numLevels ++;
-
- /* Set arguments */
- Jim_ListLength(interp, cmd->argListObjPtr, &num_args);
-
- /* If last argument is 'args', don't set it here */
- if (cmd->arityMax == -1) {
- num_args--;
- }
-
- for (i = 0; i < num_args; i++) {
- Jim_Obj *argObjPtr=NULL;
- Jim_Obj *nameObjPtr=NULL;
- Jim_Obj *valueObjPtr=NULL;
-
- Jim_ListIndex(interp, cmd->argListObjPtr, i, &argObjPtr, JIM_NONE);
- if (i + 1 >= cmd->arityMin) {
- /* The name is the first element of the list */
- Jim_ListIndex(interp, argObjPtr, 0, &nameObjPtr, JIM_NONE);
- }
- else {
- /* The element arg is the name */
- nameObjPtr = argObjPtr;
- }
-
- if (i + 1 >= argc) {
- /* No more values, so use default */
- /* The value is the second element of the list */
- Jim_ListIndex(interp, argObjPtr, 1, &valueObjPtr, JIM_NONE);
- }
- else {
- valueObjPtr = argv[i + 1];
- }
- Jim_SetVariable(interp, nameObjPtr, valueObjPtr);
- }
- /* Set optional arguments */
- if (cmd->arityMax == -1) {
- Jim_Obj *listObjPtr=NULL, *objPtr=NULL;
-
- i++;
- listObjPtr = Jim_NewListObj(interp, argv + i, argc-i);
- Jim_ListIndex(interp, cmd->argListObjPtr, num_args, &objPtr, JIM_NONE);
- Jim_SetVariable(interp, objPtr, listObjPtr);
- }
- /* Eval the body */
- retcode = Jim_EvalObj(interp, cmd->bodyObjPtr);
-
- /* Destroy the callframe */
- interp->numLevels --;
- interp->framePtr = interp->framePtr->parentCallFrame;
- if (callFramePtr->vars.size != JIM_HT_INITIAL_SIZE) {
- JimFreeCallFrame(interp, callFramePtr, JIM_FCF_NONE);
- } else {
- JimFreeCallFrame(interp, callFramePtr, JIM_FCF_NOHT);
- }
- /* Handle the JIM_EVAL return code */
- if (retcode == JIM_EVAL && interp->evalRetcodeLevel != interp->numLevels) {
- int savedLevel = interp->evalRetcodeLevel;
-
- interp->evalRetcodeLevel = interp->numLevels;
- while (retcode == JIM_EVAL) {
- Jim_Obj *resultScriptObjPtr = Jim_GetResult(interp);
- Jim_IncrRefCount(resultScriptObjPtr);
- retcode = Jim_EvalObj(interp, resultScriptObjPtr);
- Jim_DecrRefCount(interp, resultScriptObjPtr);
- }
- interp->evalRetcodeLevel = savedLevel;
- }
- /* Handle the JIM_RETURN return code */
- if (retcode == JIM_RETURN) {
- retcode = interp->returnCode;
- interp->returnCode = JIM_OK;
- }
- return retcode;
-}
-
-int Jim_Eval_Named(Jim_Interp *interp, const char *script, const char *filename, int lineno)
-{
- int retval;
- Jim_Obj *scriptObjPtr;
-
- scriptObjPtr = Jim_NewStringObj(interp, script, -1);
- Jim_IncrRefCount(scriptObjPtr);
-
-
- if (filename) {
- JimSetSourceInfo(interp, scriptObjPtr, filename, lineno);
- }
-
- retval = Jim_EvalObj(interp, scriptObjPtr);
- Jim_DecrRefCount(interp, scriptObjPtr);
- return retval;
-}
-
-int Jim_Eval(Jim_Interp *interp, const char *script)
-{
- return Jim_Eval_Named(interp, script, NULL, 0);
-}
-
-
-
-/* Execute script in the scope of the global level */
-int Jim_EvalGlobal(Jim_Interp *interp, const char *script)
-{
- Jim_CallFrame *savedFramePtr;
- int retval;
-
- savedFramePtr = interp->framePtr;
- interp->framePtr = interp->topFramePtr;
- retval = Jim_Eval(interp, script);
- interp->framePtr = savedFramePtr;
- return retval;
-}
-
-int Jim_EvalObjBackground(Jim_Interp *interp, Jim_Obj *scriptObjPtr)
-{
- Jim_CallFrame *savedFramePtr;
- int retval;
-
- savedFramePtr = interp->framePtr;
- interp->framePtr = interp->topFramePtr;
- retval = Jim_EvalObj(interp, scriptObjPtr);
- interp->framePtr = savedFramePtr;
- /* Try to report the error (if any) via the bgerror proc */
- if (retval != JIM_OK) {
- Jim_Obj *objv[2];
-
- objv[0] = Jim_NewStringObj(interp, "bgerror", -1);
- objv[1] = Jim_GetResult(interp);
- Jim_IncrRefCount(objv[0]);
- Jim_IncrRefCount(objv[1]);
- if (Jim_EvalObjVector(interp, 2, objv) != JIM_OK) {
- /* Report the error to stderr. */
- Jim_fprintf(interp, interp->cookie_stderr, "Background error:" JIM_NL);
- Jim_PrintErrorMessage(interp);
- }
- Jim_DecrRefCount(interp, objv[0]);
- Jim_DecrRefCount(interp, objv[1]);
- }
- return retval;
-}
-
-int Jim_EvalFile(Jim_Interp *interp, const char *filename)
-{
- char *prg = NULL;
- FILE *fp;
- int nread, totread, maxlen, buflen;
- int retval;
- Jim_Obj *scriptObjPtr;
-
- if ((fp = fopen(filename, "r")) == NULL) {
- const int cwd_len = 2048;
- char *cwd = malloc(cwd_len);
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- if (!getcwd(cwd, cwd_len)) strcpy(cwd, "unknown");
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "Error loading script \"", filename, "\"",
- " cwd: ", cwd,
- " err: ", strerror(errno), NULL);
- free(cwd);
- return JIM_ERR;
- }
- buflen = 1024;
- maxlen = totread = 0;
- while (1) {
- if (maxlen < totread + buflen + 1) {
- maxlen = totread + buflen + 1;
- prg = Jim_Realloc(prg, maxlen);
- }
- /* do not use Jim_fread() - this is really a file */
- if ((nread = fread(prg + totread, 1, buflen, fp)) == 0) break;
- totread += nread;
- }
- prg[totread] = '\0';
- /* do not use Jim_fclose() - this is really a file */
- fclose(fp);
-
- scriptObjPtr = Jim_NewStringObjNoAlloc(interp, prg, totread);
- JimSetSourceInfo(interp, scriptObjPtr, filename, 1);
- Jim_IncrRefCount(scriptObjPtr);
- retval = Jim_EvalObj(interp, scriptObjPtr);
- Jim_DecrRefCount(interp, scriptObjPtr);
- return retval;
-}
-
-/* -----------------------------------------------------------------------------
- * Subst
- * ---------------------------------------------------------------------------*/
-static int JimParseSubstStr(struct JimParserCtx *pc)
-{
- pc->tstart = pc->p;
- pc->tline = pc->linenr;
- while (*pc->p && *pc->p != '$' && *pc->p != '[') {
- pc->p++; pc->len--;
- }
- pc->tend = pc->p-1;
- pc->tt = JIM_TT_ESC;
- return JIM_OK;
-}
-
-static int JimParseSubst(struct JimParserCtx *pc, int flags)
-{
- int retval;
-
- if (pc->len == 0) {
- pc->tstart = pc->tend = pc->p;
- pc->tline = pc->linenr;
- pc->tt = JIM_TT_EOL;
- pc->eof = 1;
- return JIM_OK;
- }
- switch (*pc->p) {
- case '[':
- retval = JimParseCmd(pc);
- if (flags & JIM_SUBST_NOCMD) {
- pc->tstart--;
- pc->tend++;
- pc->tt = (flags & JIM_SUBST_NOESC) ?
- JIM_TT_STR : JIM_TT_ESC;
- }
- return retval;
- break;
- case '$':
- if (JimParseVar(pc) == JIM_ERR) {
- pc->tstart = pc->tend = pc->p++; pc->len--;
- pc->tline = pc->linenr;
- pc->tt = JIM_TT_STR;
- } else {
- if (flags & JIM_SUBST_NOVAR) {
- pc->tstart--;
- if (flags & JIM_SUBST_NOESC)
- pc->tt = JIM_TT_STR;
- else
- pc->tt = JIM_TT_ESC;
- if (*pc->tstart == '{') {
- pc->tstart--;
- if (*(pc->tend + 1))
- pc->tend++;
- }
- }
- }
- break;
- default:
- retval = JimParseSubstStr(pc);
- if (flags & JIM_SUBST_NOESC)
- pc->tt = JIM_TT_STR;
- return retval;
- break;
- }
- return JIM_OK;
-}
-
-/* The subst object type reuses most of the data structures and functions
- * of the script object. Script's data structures are a bit more complex
- * for what is needed for [subst]itution tasks, but the reuse helps to
- * deal with a single data structure at the cost of some more memory
- * usage for substitutions. */
-static Jim_ObjType substObjType = {
- "subst",
- FreeScriptInternalRep,
- DupScriptInternalRep,
- NULL,
- JIM_TYPE_REFERENCES,
-};
-
-/* This method takes the string representation of an object
- * as a Tcl string where to perform [subst]itution, and generates
- * the pre-parsed internal representation. */
-int SetSubstFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr, int flags)
-{
- int scriptTextLen;
- const char *scriptText = Jim_GetString(objPtr, &scriptTextLen);
- struct JimParserCtx parser;
- struct ScriptObj *script = Jim_Alloc(sizeof(*script));
-
- script->len = 0;
- script->csLen = 0;
- script->commands = 0;
- script->token = NULL;
- script->cmdStruct = NULL;
- script->inUse = 1;
- script->substFlags = flags;
- script->fileName = NULL;
-
- JimParserInit(&parser, scriptText, scriptTextLen, 1);
- while (1) {
- char *token;
- int len, type, linenr;
-
- JimParseSubst(&parser, flags);
- if (JimParserEof(&parser)) break;
- token = JimParserGetToken(&parser, &len, &type, &linenr);
- ScriptObjAddToken(interp, script, token, len, type,
- NULL, linenr);
- }
- /* Free the old internal rep and set the new one. */
- Jim_FreeIntRep(interp, objPtr);
- Jim_SetIntRepPtr(objPtr, script);
- objPtr->typePtr = &scriptObjType;
- return JIM_OK;
-}
-
-ScriptObj *Jim_GetSubst(Jim_Interp *interp, Jim_Obj *objPtr, int flags)
-{
- struct ScriptObj *script = Jim_GetIntRepPtr(objPtr);
-
- if (objPtr->typePtr != &substObjType || script->substFlags != flags)
- SetSubstFromAny(interp, objPtr, flags);
- return (ScriptObj*) Jim_GetIntRepPtr(objPtr);
-}
-
-/* Performs commands,variables,blackslashes substitution,
- * storing the result object (with refcount 0) into
- * resObjPtrPtr. */
-int Jim_SubstObj(Jim_Interp *interp, Jim_Obj *substObjPtr,
- Jim_Obj **resObjPtrPtr, int flags)
-{
- ScriptObj *script;
- ScriptToken *token;
- int i, len, retcode = JIM_OK;
- Jim_Obj *resObjPtr, *savedResultObjPtr;
-
- script = Jim_GetSubst(interp, substObjPtr, flags);
-#ifdef JIM_OPTIMIZATION
- /* Fast path for a very common case with array-alike syntax,
- * that's: $foo($bar) */
- if (script->len == 1 && script->token[0].type == JIM_TT_VAR) {
- Jim_Obj *varObjPtr = script->token[0].objPtr;
-
- Jim_IncrRefCount(varObjPtr);
- resObjPtr = Jim_GetVariable(interp, varObjPtr, JIM_ERRMSG);
- if (resObjPtr == NULL) {
- Jim_DecrRefCount(interp, varObjPtr);
- return JIM_ERR;
- }
- Jim_DecrRefCount(interp, varObjPtr);
- *resObjPtrPtr = resObjPtr;
- return JIM_OK;
- }
-#endif
-
- Jim_IncrRefCount(substObjPtr); /* Make sure it's shared. */
- /* In order to preserve the internal rep, we increment the
- * inUse field of the script internal rep structure. */
- script->inUse++;
-
- token = script->token;
- len = script->len;
-
- /* Save the interp old result, to set it again before
- * to return. */
- savedResultObjPtr = interp->result;
- Jim_IncrRefCount(savedResultObjPtr);
-
- /* Perform the substitution. Starts with an empty object
- * and adds every token (performing the appropriate
- * var/command/escape substitution). */
- resObjPtr = Jim_NewStringObj(interp, "", 0);
- for (i = 0; i < len; i++) {
- Jim_Obj *objPtr;
-
- switch (token[i].type) {
- case JIM_TT_STR:
- case JIM_TT_ESC:
- Jim_AppendObj(interp, resObjPtr, token[i].objPtr);
- break;
- case JIM_TT_VAR:
- objPtr = Jim_GetVariable(interp, token[i].objPtr, JIM_ERRMSG);
- if (objPtr == NULL) goto err;
- Jim_IncrRefCount(objPtr);
- Jim_AppendObj(interp, resObjPtr, objPtr);
- Jim_DecrRefCount(interp, objPtr);
- break;
- case JIM_TT_DICTSUGAR:
- objPtr = Jim_ExpandDictSugar(interp, token[i].objPtr);
- if (!objPtr) {
- retcode = JIM_ERR;
- goto err;
- }
- break;
- case JIM_TT_CMD:
- if (Jim_EvalObj(interp, token[i].objPtr) != JIM_OK)
- goto err;
- Jim_AppendObj(interp, resObjPtr, interp->result);
- break;
- default:
- Jim_Panic(interp,
- "default token type (%d) reached "
- "in Jim_SubstObj().", token[i].type);
- break;
- }
- }
-ok:
- if (retcode == JIM_OK)
- Jim_SetResult(interp, savedResultObjPtr);
- Jim_DecrRefCount(interp, savedResultObjPtr);
- /* Note that we don't have to decrement inUse, because the
- * following code transfers our use of the reference again to
- * the script object. */
- Jim_FreeIntRep(interp, substObjPtr);
- substObjPtr->typePtr = &scriptObjType;
- Jim_SetIntRepPtr(substObjPtr, script);
- Jim_DecrRefCount(interp, substObjPtr);
- *resObjPtrPtr = resObjPtr;
- return retcode;
-err:
- Jim_FreeNewObj(interp, resObjPtr);
- retcode = JIM_ERR;
- goto ok;
-}
-
-/* -----------------------------------------------------------------------------
- * API Input/Export functions
- * ---------------------------------------------------------------------------*/
-
-int Jim_GetApi(Jim_Interp *interp, const char *funcname, void *targetPtrPtr)
-{
- Jim_HashEntry *he;
-
- he = Jim_FindHashEntry(&interp->stub, funcname);
- if (!he)
- return JIM_ERR;
- memcpy(targetPtrPtr, &he->val, sizeof(void*));
- return JIM_OK;
-}
-
-int Jim_RegisterApi(Jim_Interp *interp, const char *funcname, void *funcptr)
-{
- return Jim_AddHashEntry(&interp->stub, funcname, funcptr);
-}
-
-#define JIM_REGISTER_API(name) \
- Jim_RegisterApi(interp, "Jim_" #name, (void *)Jim_ ## name)
-
-void JimRegisterCoreApi(Jim_Interp *interp)
-{
- interp->getApiFuncPtr = Jim_GetApi;
- JIM_REGISTER_API(Alloc);
- JIM_REGISTER_API(Free);
- JIM_REGISTER_API(Eval);
- JIM_REGISTER_API(Eval_Named);
- JIM_REGISTER_API(EvalGlobal);
- JIM_REGISTER_API(EvalFile);
- JIM_REGISTER_API(EvalObj);
- JIM_REGISTER_API(EvalObjBackground);
- JIM_REGISTER_API(EvalObjVector);
- JIM_REGISTER_API(InitHashTable);
- JIM_REGISTER_API(ExpandHashTable);
- JIM_REGISTER_API(AddHashEntry);
- JIM_REGISTER_API(ReplaceHashEntry);
- JIM_REGISTER_API(DeleteHashEntry);
- JIM_REGISTER_API(FreeHashTable);
- JIM_REGISTER_API(FindHashEntry);
- JIM_REGISTER_API(ResizeHashTable);
- JIM_REGISTER_API(GetHashTableIterator);
- JIM_REGISTER_API(NextHashEntry);
- JIM_REGISTER_API(NewObj);
- JIM_REGISTER_API(FreeObj);
- JIM_REGISTER_API(InvalidateStringRep);
- JIM_REGISTER_API(InitStringRep);
- JIM_REGISTER_API(DuplicateObj);
- JIM_REGISTER_API(GetString);
- JIM_REGISTER_API(Length);
- JIM_REGISTER_API(InvalidateStringRep);
- JIM_REGISTER_API(NewStringObj);
- JIM_REGISTER_API(NewStringObjNoAlloc);
- JIM_REGISTER_API(AppendString);
- JIM_REGISTER_API(AppendString_sprintf);
- JIM_REGISTER_API(AppendObj);
- JIM_REGISTER_API(AppendStrings);
- JIM_REGISTER_API(StringEqObj);
- JIM_REGISTER_API(StringMatchObj);
- JIM_REGISTER_API(StringRangeObj);
- JIM_REGISTER_API(FormatString);
- JIM_REGISTER_API(CompareStringImmediate);
- JIM_REGISTER_API(NewReference);
- JIM_REGISTER_API(GetReference);
- JIM_REGISTER_API(SetFinalizer);
- JIM_REGISTER_API(GetFinalizer);
- JIM_REGISTER_API(CreateInterp);
- JIM_REGISTER_API(FreeInterp);
- JIM_REGISTER_API(GetExitCode);
- JIM_REGISTER_API(SetStdin);
- JIM_REGISTER_API(SetStdout);
- JIM_REGISTER_API(SetStderr);
- JIM_REGISTER_API(CreateCommand);
- JIM_REGISTER_API(CreateProcedure);
- JIM_REGISTER_API(DeleteCommand);
- JIM_REGISTER_API(RenameCommand);
- JIM_REGISTER_API(GetCommand);
- JIM_REGISTER_API(SetVariable);
- JIM_REGISTER_API(SetVariableStr);
- JIM_REGISTER_API(SetGlobalVariableStr);
- JIM_REGISTER_API(SetVariableStrWithStr);
- JIM_REGISTER_API(SetVariableLink);
- JIM_REGISTER_API(GetVariable);
- JIM_REGISTER_API(GetCallFrameByLevel);
- JIM_REGISTER_API(Collect);
- JIM_REGISTER_API(CollectIfNeeded);
- JIM_REGISTER_API(GetIndex);
- JIM_REGISTER_API(NewListObj);
- JIM_REGISTER_API(ListAppendElement);
- JIM_REGISTER_API(ListAppendList);
- JIM_REGISTER_API(ListLength);
- JIM_REGISTER_API(ListIndex);
- JIM_REGISTER_API(SetListIndex);
- JIM_REGISTER_API(ConcatObj);
- JIM_REGISTER_API(NewDictObj);
- JIM_REGISTER_API(DictKey);
- JIM_REGISTER_API(DictKeysVector);
- JIM_REGISTER_API(GetIndex);
- JIM_REGISTER_API(GetReturnCode);
- JIM_REGISTER_API(EvalExpression);
- JIM_REGISTER_API(GetBoolFromExpr);
- JIM_REGISTER_API(GetWide);
- JIM_REGISTER_API(GetLong);
- JIM_REGISTER_API(SetWide);
- JIM_REGISTER_API(NewIntObj);
- JIM_REGISTER_API(GetDouble);
- JIM_REGISTER_API(SetDouble);
- JIM_REGISTER_API(NewDoubleObj);
- JIM_REGISTER_API(WrongNumArgs);
- JIM_REGISTER_API(SetDictKeysVector);
- JIM_REGISTER_API(SubstObj);
- JIM_REGISTER_API(RegisterApi);
- JIM_REGISTER_API(PrintErrorMessage);
- JIM_REGISTER_API(InteractivePrompt);
- JIM_REGISTER_API(RegisterCoreCommands);
- JIM_REGISTER_API(GetSharedString);
- JIM_REGISTER_API(ReleaseSharedString);
- JIM_REGISTER_API(Panic);
- JIM_REGISTER_API(StrDup);
- JIM_REGISTER_API(UnsetVariable);
- JIM_REGISTER_API(GetVariableStr);
- JIM_REGISTER_API(GetGlobalVariable);
- JIM_REGISTER_API(GetGlobalVariableStr);
- JIM_REGISTER_API(GetAssocData);
- JIM_REGISTER_API(SetAssocData);
- JIM_REGISTER_API(DeleteAssocData);
- JIM_REGISTER_API(GetEnum);
- JIM_REGISTER_API(ScriptIsComplete);
- JIM_REGISTER_API(PackageRequire);
- JIM_REGISTER_API(PackageProvide);
- JIM_REGISTER_API(InitStack);
- JIM_REGISTER_API(FreeStack);
- JIM_REGISTER_API(StackLen);
- JIM_REGISTER_API(StackPush);
- JIM_REGISTER_API(StackPop);
- JIM_REGISTER_API(StackPeek);
- JIM_REGISTER_API(FreeStackElements);
- JIM_REGISTER_API(fprintf);
- JIM_REGISTER_API(vfprintf);
- JIM_REGISTER_API(fwrite);
- JIM_REGISTER_API(fread);
- JIM_REGISTER_API(fflush);
- JIM_REGISTER_API(fgets);
- JIM_REGISTER_API(GetNvp);
- JIM_REGISTER_API(Nvp_name2value);
- JIM_REGISTER_API(Nvp_name2value_simple);
- JIM_REGISTER_API(Nvp_name2value_obj);
- JIM_REGISTER_API(Nvp_name2value_nocase);
- JIM_REGISTER_API(Nvp_name2value_obj_nocase);
-
- JIM_REGISTER_API(Nvp_value2name);
- JIM_REGISTER_API(Nvp_value2name_simple);
- JIM_REGISTER_API(Nvp_value2name_obj);
-
- JIM_REGISTER_API(GetOpt_Setup);
- JIM_REGISTER_API(GetOpt_Debug);
- JIM_REGISTER_API(GetOpt_Obj);
- JIM_REGISTER_API(GetOpt_String);
- JIM_REGISTER_API(GetOpt_Double);
- JIM_REGISTER_API(GetOpt_Wide);
- JIM_REGISTER_API(GetOpt_Nvp);
- JIM_REGISTER_API(GetOpt_NvpUnknown);
- JIM_REGISTER_API(GetOpt_Enum);
-
- JIM_REGISTER_API(Debug_ArgvString);
- JIM_REGISTER_API(SetResult_sprintf);
- JIM_REGISTER_API(SetResult_NvpUnknown);
-
-}
-
-/* -----------------------------------------------------------------------------
- * Core commands utility functions
- * ---------------------------------------------------------------------------*/
-void Jim_WrongNumArgs(Jim_Interp *interp, int argc, Jim_Obj *const *argv,
- const char *msg)
-{
- int i;
- Jim_Obj *objPtr = Jim_NewEmptyStringObj(interp);
-
- Jim_AppendString(interp, objPtr, "wrong # args: should be \"", -1);
- for (i = 0; i < argc; i++) {
- Jim_AppendObj(interp, objPtr, argv[i]);
- if (!(i + 1 == argc && msg[0] == '\0'))
- Jim_AppendString(interp, objPtr, " ", 1);
- }
- Jim_AppendString(interp, objPtr, msg, -1);
- Jim_AppendString(interp, objPtr, "\"", 1);
- Jim_SetResult(interp, objPtr);
-}
-
-static Jim_Obj *JimCommandsList(Jim_Interp *interp, Jim_Obj *patternObjPtr)
-{
- Jim_HashTableIterator *htiter;
- Jim_HashEntry *he;
- Jim_Obj *listObjPtr = Jim_NewListObj(interp, NULL, 0);
- const char *pattern;
- int patternLen=0;
-
- pattern = patternObjPtr ? Jim_GetString(patternObjPtr, &patternLen) : NULL;
- htiter = Jim_GetHashTableIterator(&interp->commands);
- while ((he = Jim_NextHashEntry(htiter)) != NULL) {
- if (pattern && !JimStringMatch(pattern, patternLen, he->key,
- strlen((const char*)he->key), 0))
- continue;
- Jim_ListAppendElement(interp, listObjPtr,
- Jim_NewStringObj(interp, he->key, -1));
- }
- Jim_FreeHashTableIterator(htiter);
- return listObjPtr;
-}
-
-#define JIM_VARLIST_GLOBALS 0
-#define JIM_VARLIST_LOCALS 1
-#define JIM_VARLIST_VARS 2
-
-static Jim_Obj *JimVariablesList(Jim_Interp *interp, Jim_Obj *patternObjPtr,
- int mode)
-{
- Jim_HashTableIterator *htiter;
- Jim_HashEntry *he;
- Jim_Obj *listObjPtr = Jim_NewListObj(interp, NULL, 0);
- const char *pattern;
- int patternLen=0;
-
- pattern = patternObjPtr ? Jim_GetString(patternObjPtr, &patternLen) : NULL;
- if (mode == JIM_VARLIST_GLOBALS) {
- htiter = Jim_GetHashTableIterator(&interp->topFramePtr->vars);
- } else {
- /* For [info locals], if we are at top level an emtpy list
- * is returned. I don't agree, but we aim at compatibility (SS) */
- if (mode == JIM_VARLIST_LOCALS &&
- interp->framePtr == interp->topFramePtr)
- return listObjPtr;
- htiter = Jim_GetHashTableIterator(&interp->framePtr->vars);
- }
- while ((he = Jim_NextHashEntry(htiter)) != NULL) {
- Jim_Var *varPtr = (Jim_Var*) he->val;
- if (mode == JIM_VARLIST_LOCALS) {
- if (varPtr->linkFramePtr != NULL)
- continue;
- }
- if (pattern && !JimStringMatch(pattern, patternLen, he->key,
- strlen((const char*)he->key), 0))
- continue;
- Jim_ListAppendElement(interp, listObjPtr,
- Jim_NewStringObj(interp, he->key, -1));
- }
- Jim_FreeHashTableIterator(htiter);
- return listObjPtr;
-}
-
-static int JimInfoLevel(Jim_Interp *interp, Jim_Obj *levelObjPtr,
- Jim_Obj **objPtrPtr)
-{
- Jim_CallFrame *targetCallFrame;
-
- if (JimGetCallFrameByInteger(interp, levelObjPtr, &targetCallFrame)
- != JIM_OK)
- return JIM_ERR;
- /* No proc call at toplevel callframe */
- if (targetCallFrame == interp->topFramePtr) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "bad level \"",
- Jim_GetString(levelObjPtr, NULL), "\"", NULL);
- return JIM_ERR;
- }
- *objPtrPtr = Jim_NewListObj(interp,
- targetCallFrame->argv,
- targetCallFrame->argc);
- return JIM_OK;
-}
-
-/* -----------------------------------------------------------------------------
- * Core commands
- * ---------------------------------------------------------------------------*/
-
-/* fake [puts] -- not the real puts, just for debugging. */
-static int Jim_PutsCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- const char *str;
- int len, nonewline = 0;
-
- if (argc != 2 && argc != 3) {
- Jim_WrongNumArgs(interp, 1, argv, "-nonewline string");
- return JIM_ERR;
- }
- if (argc == 3) {
- if (!Jim_CompareStringImmediate(interp, argv[1], "-nonewline"))
- {
- Jim_SetResultString(interp, "The second argument must "
- "be -nonewline", -1);
- return JIM_OK;
- } else {
- nonewline = 1;
- argv++;
- }
- }
- str = Jim_GetString(argv[1], &len);
- Jim_fwrite(interp, str, 1, len, interp->cookie_stdout);
- if (!nonewline) Jim_fprintf(interp, interp->cookie_stdout, JIM_NL);
- return JIM_OK;
-}
-
-/* Helper for [+] and [*] */
-static int Jim_AddMulHelper(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv, int op)
-{
- jim_wide wideValue, res;
- double doubleValue, doubleRes;
- int i;
-
- res = (op == JIM_EXPROP_ADD) ? 0 : 1;
-
- for (i = 1; i < argc; i++) {
- if (Jim_GetWide(interp, argv[i], &wideValue) != JIM_OK)
- goto trydouble;
- if (op == JIM_EXPROP_ADD)
- res += wideValue;
- else
- res *= wideValue;
- }
- Jim_SetResult(interp, Jim_NewIntObj(interp, res));
- return JIM_OK;
-trydouble:
- doubleRes = (double) res;
- for (;i < argc; i++) {
- if (Jim_GetDouble(interp, argv[i], &doubleValue) != JIM_OK)
- return JIM_ERR;
- if (op == JIM_EXPROP_ADD)
- doubleRes += doubleValue;
- else
- doubleRes *= doubleValue;
- }
- Jim_SetResult(interp, Jim_NewDoubleObj(interp, doubleRes));
- return JIM_OK;
-}
-
-/* Helper for [-] and [/] */
-static int Jim_SubDivHelper(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv, int op)
-{
- jim_wide wideValue, res = 0;
- double doubleValue, doubleRes = 0;
- int i = 2;
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "number ?number ... number?");
- return JIM_ERR;
- } else if (argc == 2) {
- /* The arity = 2 case is different. For [- x] returns -x,
- * while [/ x] returns 1/x. */
- if (Jim_GetWide(interp, argv[1], &wideValue) != JIM_OK) {
- if (Jim_GetDouble(interp, argv[1], &doubleValue) !=
- JIM_OK)
- {
- return JIM_ERR;
- } else {
- if (op == JIM_EXPROP_SUB)
- doubleRes = -doubleValue;
- else
- doubleRes = 1.0/doubleValue;
- Jim_SetResult(interp, Jim_NewDoubleObj(interp,
- doubleRes));
- return JIM_OK;
- }
- }
- if (op == JIM_EXPROP_SUB) {
- res = -wideValue;
- Jim_SetResult(interp, Jim_NewIntObj(interp, res));
- } else {
- doubleRes = 1.0/wideValue;
- Jim_SetResult(interp, Jim_NewDoubleObj(interp,
- doubleRes));
- }
- return JIM_OK;
- } else {
- if (Jim_GetWide(interp, argv[1], &res) != JIM_OK) {
- if (Jim_GetDouble(interp, argv[1], &doubleRes)
- != JIM_OK) {
- return JIM_ERR;
- } else {
- goto trydouble;
- }
- }
- }
- for (i = 2; i < argc; i++) {
- if (Jim_GetWide(interp, argv[i], &wideValue) != JIM_OK) {
- doubleRes = (double) res;
- goto trydouble;
- }
- if (op == JIM_EXPROP_SUB)
- res -= wideValue;
- else
- res /= wideValue;
- }
- Jim_SetResult(interp, Jim_NewIntObj(interp, res));
- return JIM_OK;
-trydouble:
- for (;i < argc; i++) {
- if (Jim_GetDouble(interp, argv[i], &doubleValue) != JIM_OK)
- return JIM_ERR;
- if (op == JIM_EXPROP_SUB)
- doubleRes -= doubleValue;
- else
- doubleRes /= doubleValue;
- }
- Jim_SetResult(interp, Jim_NewDoubleObj(interp, doubleRes));
- return JIM_OK;
-}
-
-
-/* [+] */
-static int Jim_AddCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- return Jim_AddMulHelper(interp, argc, argv, JIM_EXPROP_ADD);
-}
-
-/* [*] */
-static int Jim_MulCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- return Jim_AddMulHelper(interp, argc, argv, JIM_EXPROP_MUL);
-}
-
-/* [-] */
-static int Jim_SubCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- return Jim_SubDivHelper(interp, argc, argv, JIM_EXPROP_SUB);
-}
-
-/* [/] */
-static int Jim_DivCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- return Jim_SubDivHelper(interp, argc, argv, JIM_EXPROP_DIV);
-}
-
-/* [set] */
-static int Jim_SetCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- if (argc != 2 && argc != 3) {
- Jim_WrongNumArgs(interp, 1, argv, "varName ?newValue?");
- return JIM_ERR;
- }
- if (argc == 2) {
- Jim_Obj *objPtr;
- objPtr = Jim_GetVariable(interp, argv[1], JIM_ERRMSG);
- if (!objPtr)
- return JIM_ERR;
- Jim_SetResult(interp, objPtr);
- return JIM_OK;
- }
- /* argc == 3 case. */
- if (Jim_SetVariable(interp, argv[1], argv[2]) != JIM_OK)
- return JIM_ERR;
- Jim_SetResult(interp, argv[2]);
- return JIM_OK;
-}
-
-/* [unset] */
-static int Jim_UnsetCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int i;
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "varName ?varName ...?");
- return JIM_ERR;
- }
- for (i = 1; i < argc; i++) {
- if (Jim_UnsetVariable(interp, argv[i], JIM_ERRMSG) != JIM_OK)
- return JIM_ERR;
- }
- return JIM_OK;
-}
-
-/* [incr] */
-static int Jim_IncrCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- jim_wide wideValue, increment = 1;
- Jim_Obj *intObjPtr;
-
- if (argc != 2 && argc != 3) {
- Jim_WrongNumArgs(interp, 1, argv, "varName ?increment?");
- return JIM_ERR;
- }
- if (argc == 3) {
- if (Jim_GetWide(interp, argv[2], &increment) != JIM_OK)
- return JIM_ERR;
- }
- intObjPtr = Jim_GetVariable(interp, argv[1], JIM_ERRMSG);
- if (!intObjPtr) return JIM_ERR;
- if (Jim_GetWide(interp, intObjPtr, &wideValue) != JIM_OK)
- return JIM_ERR;
- if (Jim_IsShared(intObjPtr)) {
- intObjPtr = Jim_NewIntObj(interp, wideValue + increment);
- if (Jim_SetVariable(interp, argv[1], intObjPtr) != JIM_OK) {
- Jim_FreeNewObj(interp, intObjPtr);
- return JIM_ERR;
- }
- } else {
- Jim_SetWide(interp, intObjPtr, wideValue + increment);
- /* The following step is required in order to invalidate the
- * string repr of "FOO" if the var name is on the form of "FOO(IDX)" */
- if (Jim_SetVariable(interp, argv[1], intObjPtr) != JIM_OK) {
- return JIM_ERR;
- }
- }
- Jim_SetResult(interp, intObjPtr);
- return JIM_OK;
-}
-
-/* [while] */
-static int Jim_WhileCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 1, argv, "condition body");
- return JIM_ERR;
- }
- /* Try to run a specialized version of while if the expression
- * is in one of the following forms:
- *
- * $a < CONST, $a < $b
- * $a <= CONST, $a <= $b
- * $a > CONST, $a > $b
- * $a >= CONST, $a >= $b
- * $a != CONST, $a != $b
- * $a == CONST, $a == $b
- * $a
- * !$a
- * CONST
- */
-
-#ifdef JIM_OPTIMIZATION
- {
- ExprByteCode *expr;
- Jim_Obj *varAObjPtr = NULL, *varBObjPtr = NULL, *objPtr;
- int exprLen, retval;
-
- /* STEP 1 -- Check if there are the conditions to run the specialized
- * version of while */
-
- if ((expr = Jim_GetExpression(interp, argv[1])) == NULL) goto noopt;
- if (expr->len <= 0 || expr->len > 3) goto noopt;
- switch (expr->len) {
- case 1:
- if (expr->opcode[0] != JIM_EXPROP_VARIABLE &&
- expr->opcode[0] != JIM_EXPROP_NUMBER)
- goto noopt;
- break;
- case 2:
- if (expr->opcode[1] != JIM_EXPROP_NOT ||
- expr->opcode[0] != JIM_EXPROP_VARIABLE)
- goto noopt;
- break;
- case 3:
- if (expr->opcode[0] != JIM_EXPROP_VARIABLE ||
- (expr->opcode[1] != JIM_EXPROP_NUMBER &&
- expr->opcode[1] != JIM_EXPROP_VARIABLE))
- goto noopt;
- switch (expr->opcode[2]) {
- case JIM_EXPROP_LT:
- case JIM_EXPROP_LTE:
- case JIM_EXPROP_GT:
- case JIM_EXPROP_GTE:
- case JIM_EXPROP_NUMEQ:
- case JIM_EXPROP_NUMNE:
- /* nothing to do */
- break;
- default:
- goto noopt;
- }
- break;
- default:
- Jim_Panic(interp,
- "Unexpected default reached in Jim_WhileCoreCommand()");
- break;
- }
-
- /* STEP 2 -- conditions meet. Initialization. Take different
- * branches for different expression lengths. */
- exprLen = expr->len;
-
- if (exprLen == 1) {
- jim_wide wideValue=0;
-
- if (expr->opcode[0] == JIM_EXPROP_VARIABLE) {
- varAObjPtr = expr->obj[0];
- Jim_IncrRefCount(varAObjPtr);
- } else {
- if (Jim_GetWide(interp, expr->obj[0], &wideValue) != JIM_OK)
- goto noopt;
- }
- while (1) {
- if (varAObjPtr) {
- if (!(objPtr =
- Jim_GetVariable(interp, varAObjPtr, JIM_NONE)) ||
- Jim_GetWide(interp, objPtr, &wideValue) != JIM_OK)
- {
- Jim_DecrRefCount(interp, varAObjPtr);
- goto noopt;
- }
- }
- if (!wideValue) break;
- if ((retval = Jim_EvalObj(interp, argv[2])) != JIM_OK) {
- switch (retval) {
- case JIM_BREAK:
- if (varAObjPtr)
- Jim_DecrRefCount(interp, varAObjPtr);
- goto out;
- break;
- case JIM_CONTINUE:
- continue;
- break;
- default:
- if (varAObjPtr)
- Jim_DecrRefCount(interp, varAObjPtr);
- return retval;
- }
- }
- }
- if (varAObjPtr)
- Jim_DecrRefCount(interp, varAObjPtr);
- } else if (exprLen == 3) {
- jim_wide wideValueA, wideValueB=0, cmpRes = 0;
- int cmpType = expr->opcode[2];
-
- varAObjPtr = expr->obj[0];
- Jim_IncrRefCount(varAObjPtr);
- if (expr->opcode[1] == JIM_EXPROP_VARIABLE) {
- varBObjPtr = expr->obj[1];
- Jim_IncrRefCount(varBObjPtr);
- } else {
- if (Jim_GetWide(interp, expr->obj[1], &wideValueB) != JIM_OK)
- goto noopt;
- }
- while (1) {
- if (!(objPtr = Jim_GetVariable(interp, varAObjPtr, JIM_NONE)) ||
- Jim_GetWide(interp, objPtr, &wideValueA) != JIM_OK)
- {
- Jim_DecrRefCount(interp, varAObjPtr);
- if (varBObjPtr)
- Jim_DecrRefCount(interp, varBObjPtr);
- goto noopt;
- }
- if (varBObjPtr) {
- if (!(objPtr =
- Jim_GetVariable(interp, varBObjPtr, JIM_NONE)) ||
- Jim_GetWide(interp, objPtr, &wideValueB) != JIM_OK)
- {
- Jim_DecrRefCount(interp, varAObjPtr);
- Jim_DecrRefCount(interp, varBObjPtr);
- goto noopt;
- }
- }
- switch (cmpType) {
- case JIM_EXPROP_LT:
- cmpRes = wideValueA < wideValueB; break;
- case JIM_EXPROP_LTE:
- cmpRes = wideValueA <= wideValueB; break;
- case JIM_EXPROP_GT:
- cmpRes = wideValueA > wideValueB; break;
- case JIM_EXPROP_GTE:
- cmpRes = wideValueA >= wideValueB; break;
- case JIM_EXPROP_NUMEQ:
- cmpRes = wideValueA == wideValueB; break;
- case JIM_EXPROP_NUMNE:
- cmpRes = wideValueA != wideValueB; break;
- }
- if (!cmpRes) break;
- if ((retval = Jim_EvalObj(interp, argv[2])) != JIM_OK) {
- switch (retval) {
- case JIM_BREAK:
- Jim_DecrRefCount(interp, varAObjPtr);
- if (varBObjPtr)
- Jim_DecrRefCount(interp, varBObjPtr);
- goto out;
- break;
- case JIM_CONTINUE:
- continue;
- break;
- default:
- Jim_DecrRefCount(interp, varAObjPtr);
- if (varBObjPtr)
- Jim_DecrRefCount(interp, varBObjPtr);
- return retval;
- }
- }
- }
- Jim_DecrRefCount(interp, varAObjPtr);
- if (varBObjPtr)
- Jim_DecrRefCount(interp, varBObjPtr);
- } else {
- /* TODO: case for len == 2 */
- goto noopt;
- }
- Jim_SetEmptyResult(interp);
- return JIM_OK;
- }
-noopt:
-#endif
-
- /* The general purpose implementation of while starts here */
- while (1) {
- int boolean, retval;
-
- if ((retval = Jim_GetBoolFromExpr(interp, argv[1],
- &boolean)) != JIM_OK)
- return retval;
- if (!boolean) break;
- if ((retval = Jim_EvalObj(interp, argv[2])) != JIM_OK) {
- switch (retval) {
- case JIM_BREAK:
- goto out;
- break;
- case JIM_CONTINUE:
- continue;
- break;
- default:
- return retval;
- }
- }
- }
-out:
- Jim_SetEmptyResult(interp);
- return JIM_OK;
-}
-
-/* [for] */
-static int Jim_ForCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int retval;
-
- if (argc != 5) {
- Jim_WrongNumArgs(interp, 1, argv, "start test next body");
- return JIM_ERR;
- }
- /* Check if the for is on the form:
- * for {set i CONST} {$i < CONST} {incr i}
- * for {set i CONST} {$i < $j} {incr i}
- * for {set i CONST} {$i <= CONST} {incr i}
- * for {set i CONST} {$i <= $j} {incr i}
- * XXX: NOTE: if variable traces are implemented, this optimization
- * need to be modified to check for the proc epoch at every variable
- * update. */
-#ifdef JIM_OPTIMIZATION
- {
- ScriptObj *initScript, *incrScript;
- ExprByteCode *expr;
- jim_wide start, stop=0, currentVal;
- unsigned jim_wide procEpoch = interp->procEpoch;
- Jim_Obj *varNamePtr, *stopVarNamePtr = NULL, *objPtr;
- int cmpType;
- struct Jim_Cmd *cmdPtr;
-
- /* Do it only if there aren't shared arguments */
- if (argv[1] == argv[2] || argv[2] == argv[3] || argv[1] == argv[3])
- goto evalstart;
- initScript = Jim_GetScript(interp, argv[1]);
- expr = Jim_GetExpression(interp, argv[2]);
- incrScript = Jim_GetScript(interp, argv[3]);
-
- /* Ensure proper lengths to start */
- if (initScript->len != 6) goto evalstart;
- if (incrScript->len != 4) goto evalstart;
- if (expr->len != 3) goto evalstart;
- /* Ensure proper token types. */
- if (initScript->token[2].type != JIM_TT_ESC ||
- initScript->token[4].type != JIM_TT_ESC ||
- incrScript->token[2].type != JIM_TT_ESC ||
- expr->opcode[0] != JIM_EXPROP_VARIABLE ||
- (expr->opcode[1] != JIM_EXPROP_NUMBER &&
- expr->opcode[1] != JIM_EXPROP_VARIABLE) ||
- (expr->opcode[2] != JIM_EXPROP_LT &&
- expr->opcode[2] != JIM_EXPROP_LTE))
- goto evalstart;
- cmpType = expr->opcode[2];
- /* Initialization command must be [set] */
- cmdPtr = Jim_GetCommand(interp, initScript->token[0].objPtr, JIM_NONE);
- if (cmdPtr == NULL || cmdPtr->cmdProc != Jim_SetCoreCommand)
- goto evalstart;
- /* Update command must be incr */
- cmdPtr = Jim_GetCommand(interp, incrScript->token[0].objPtr, JIM_NONE);
- if (cmdPtr == NULL || cmdPtr->cmdProc != Jim_IncrCoreCommand)
- goto evalstart;
- /* set, incr, expression must be about the same variable */
- if (!Jim_StringEqObj(initScript->token[2].objPtr,
- incrScript->token[2].objPtr, 0))
- goto evalstart;
- if (!Jim_StringEqObj(initScript->token[2].objPtr,
- expr->obj[0], 0))
- goto evalstart;
- /* Check that the initialization and comparison are valid integers */
- if (Jim_GetWide(interp, initScript->token[4].objPtr, &start) == JIM_ERR)
- goto evalstart;
- if (expr->opcode[1] == JIM_EXPROP_NUMBER &&
- Jim_GetWide(interp, expr->obj[1], &stop) == JIM_ERR)
- {
- goto evalstart;
- }
-
- /* Initialization */
- varNamePtr = expr->obj[0];
- if (expr->opcode[1] == JIM_EXPROP_VARIABLE) {
- stopVarNamePtr = expr->obj[1];
- Jim_IncrRefCount(stopVarNamePtr);
- }
- Jim_IncrRefCount(varNamePtr);
-
- /* --- OPTIMIZED FOR --- */
- /* Start to loop */
- objPtr = Jim_NewIntObj(interp, start);
- if (Jim_SetVariable(interp, varNamePtr, objPtr) != JIM_OK) {
- Jim_DecrRefCount(interp, varNamePtr);
- if (stopVarNamePtr) Jim_DecrRefCount(interp, stopVarNamePtr);
- Jim_FreeNewObj(interp, objPtr);
- goto evalstart;
- }
- while (1) {
- /* === Check condition === */
- /* Common code: */
- objPtr = Jim_GetVariable(interp, varNamePtr, JIM_NONE);
- if (objPtr == NULL ||
- Jim_GetWide(interp, objPtr, ¤tVal) != JIM_OK)
- {
- Jim_DecrRefCount(interp, varNamePtr);
- if (stopVarNamePtr) Jim_DecrRefCount(interp, stopVarNamePtr);
- goto testcond;
- }
- /* Immediate or Variable? get the 'stop' value if the latter. */
- if (stopVarNamePtr) {
- objPtr = Jim_GetVariable(interp, stopVarNamePtr, JIM_NONE);
- if (objPtr == NULL ||
- Jim_GetWide(interp, objPtr, &stop) != JIM_OK)
- {
- Jim_DecrRefCount(interp, varNamePtr);
- Jim_DecrRefCount(interp, stopVarNamePtr);
- goto testcond;
- }
- }
- if (cmpType == JIM_EXPROP_LT) {
- if (currentVal >= stop) break;
- } else {
- if (currentVal > stop) break;
- }
- /* Eval body */
- if ((retval = Jim_EvalObj(interp, argv[4])) != JIM_OK) {
- switch (retval) {
- case JIM_BREAK:
- if (stopVarNamePtr)
- Jim_DecrRefCount(interp, stopVarNamePtr);
- Jim_DecrRefCount(interp, varNamePtr);
- goto out;
- case JIM_CONTINUE:
- /* nothing to do */
- break;
- default:
- if (stopVarNamePtr)
- Jim_DecrRefCount(interp, stopVarNamePtr);
- Jim_DecrRefCount(interp, varNamePtr);
- return retval;
- }
- }
- /* If there was a change in procedures/command continue
- * with the usual [for] command implementation */
- if (procEpoch != interp->procEpoch) {
- if (stopVarNamePtr)
- Jim_DecrRefCount(interp, stopVarNamePtr);
- Jim_DecrRefCount(interp, varNamePtr);
- goto evalnext;
- }
- /* Increment */
- objPtr = Jim_GetVariable(interp, varNamePtr, JIM_ERRMSG);
- if (objPtr->refCount == 1 && objPtr->typePtr == &intObjType) {
- objPtr->internalRep.wideValue ++;
- Jim_InvalidateStringRep(objPtr);
- } else {
- Jim_Obj *auxObjPtr;
-
- if (Jim_GetWide(interp, objPtr, ¤tVal) == JIM_ERR) {
- if (stopVarNamePtr)
- Jim_DecrRefCount(interp, stopVarNamePtr);
- Jim_DecrRefCount(interp, varNamePtr);
- goto evalnext;
- }
- auxObjPtr = Jim_NewIntObj(interp, currentVal + 1);
- if (Jim_SetVariable(interp, varNamePtr, auxObjPtr) == JIM_ERR) {
- if (stopVarNamePtr)
- Jim_DecrRefCount(interp, stopVarNamePtr);
- Jim_DecrRefCount(interp, varNamePtr);
- Jim_FreeNewObj(interp, auxObjPtr);
- goto evalnext;
- }
- }
- }
- if (stopVarNamePtr)
- Jim_DecrRefCount(interp, stopVarNamePtr);
- Jim_DecrRefCount(interp, varNamePtr);
- Jim_SetEmptyResult(interp);
- return JIM_OK;
- }
-#endif
-evalstart:
- /* Eval start */
- if ((retval = Jim_EvalObj(interp, argv[1])) != JIM_OK)
- return retval;
- while (1) {
- int boolean;
-testcond:
- /* Test the condition */
- if ((retval = Jim_GetBoolFromExpr(interp, argv[2], &boolean))
- != JIM_OK)
- return retval;
- if (!boolean) break;
- /* Eval body */
- if ((retval = Jim_EvalObj(interp, argv[4])) != JIM_OK) {
- switch (retval) {
- case JIM_BREAK:
- goto out;
- break;
- case JIM_CONTINUE:
- /* Nothing to do */
- break;
- default:
- return retval;
- }
- }
-evalnext:
- /* Eval next */
- if ((retval = Jim_EvalObj(interp, argv[3])) != JIM_OK) {
- switch (retval) {
- case JIM_BREAK:
- goto out;
- break;
- case JIM_CONTINUE:
- continue;
- break;
- default:
- return retval;
- }
- }
- }
-out:
- Jim_SetEmptyResult(interp);
- return JIM_OK;
-}
-
-/* foreach + lmap implementation. */
-static int JimForeachMapHelper(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv, int doMap)
-{
- int result = JIM_ERR, i, nbrOfLists, *listsIdx, *listsEnd;
- int nbrOfLoops = 0;
- Jim_Obj *emptyStr, *script, *mapRes = NULL;
-
- if (argc < 4 || argc % 2 != 0) {
- Jim_WrongNumArgs(interp, 1, argv, "varList list ?varList list ...? script");
- return JIM_ERR;
- }
- if (doMap) {
- mapRes = Jim_NewListObj(interp, NULL, 0);
- Jim_IncrRefCount(mapRes);
- }
- emptyStr = Jim_NewEmptyStringObj(interp);
- Jim_IncrRefCount(emptyStr);
- script = argv[argc-1]; /* Last argument is a script */
- nbrOfLists = (argc - 1 - 1) / 2; /* argc - 'foreach' - script */
- listsIdx = (int*)Jim_Alloc(nbrOfLists * sizeof(int));
- listsEnd = (int*)Jim_Alloc(nbrOfLists*2 * sizeof(int));
- /* Initialize iterators and remember max nbr elements each list */
- memset(listsIdx, 0, nbrOfLists * sizeof(int));
- /* Remember lengths of all lists and calculate how much rounds to loop */
- for (i = 0; i < nbrOfLists*2; i += 2) {
- div_t cnt;
- int count;
- Jim_ListLength(interp, argv[i + 1], &listsEnd[i]);
- Jim_ListLength(interp, argv[i + 2], &listsEnd[i + 1]);
- if (listsEnd[i] == 0) {
- Jim_SetResultString(interp, "foreach varlist is empty", -1);
- goto err;
- }
- cnt = div(listsEnd[i + 1], listsEnd[i]);
- count = cnt.quot + (cnt.rem ? 1 : 0);
- if (count > nbrOfLoops)
- nbrOfLoops = count;
- }
- for (; nbrOfLoops-- > 0;) {
- for (i = 0; i < nbrOfLists; ++i) {
- int varIdx = 0, var = i * 2;
- while (varIdx < listsEnd[var]) {
- Jim_Obj *varName, *ele;
- int lst = i * 2 + 1;
- if (Jim_ListIndex(interp, argv[var + 1], varIdx, &varName, JIM_ERRMSG)
- != JIM_OK)
- goto err;
- if (listsIdx[i] < listsEnd[lst]) {
- if (Jim_ListIndex(interp, argv[lst + 1], listsIdx[i], &ele, JIM_ERRMSG)
- != JIM_OK)
- goto err;
- if (Jim_SetVariable(interp, varName, ele) != JIM_OK) {
- Jim_SetResultString(interp, "couldn't set loop variable: ", -1);
- goto err;
- }
- ++listsIdx[i]; /* Remember next iterator of current list */
- } else if (Jim_SetVariable(interp, varName, emptyStr) != JIM_OK) {
- Jim_SetResultString(interp, "couldn't set loop variable: ", -1);
- goto err;
- }
- ++varIdx; /* Next variable */
- }
- }
- switch (result = Jim_EvalObj(interp, script)) {
- case JIM_OK:
- if (doMap)
- Jim_ListAppendElement(interp, mapRes, interp->result);
- break;
- case JIM_CONTINUE:
- break;
- case JIM_BREAK:
- goto out;
- break;
- default:
- goto err;
- }
- }
-out:
- result = JIM_OK;
- if (doMap)
- Jim_SetResult(interp, mapRes);
- else
- Jim_SetEmptyResult(interp);
-err:
- if (doMap)
- Jim_DecrRefCount(interp, mapRes);
- Jim_DecrRefCount(interp, emptyStr);
- Jim_Free(listsIdx);
- Jim_Free(listsEnd);
- return result;
-}
-
-/* [foreach] */
-static int Jim_ForeachCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- return JimForeachMapHelper(interp, argc, argv, 0);
-}
-
-/* [lmap] */
-static int Jim_LmapCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- return JimForeachMapHelper(interp, argc, argv, 1);
-}
-
-/* [if] */
-static int Jim_IfCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int boolean, retval, current = 1, falsebody = 0;
- if (argc >= 3) {
- while (1) {
- /* Far not enough arguments given! */
- if (current >= argc) goto err;
- if ((retval = Jim_GetBoolFromExpr(interp,
- argv[current++], &boolean))
- != JIM_OK)
- return retval;
- /* There lacks something, isn't it? */
- if (current >= argc) goto err;
- if (Jim_CompareStringImmediate(interp, argv[current],
- "then")) current++;
- /* Tsk tsk, no then-clause? */
- if (current >= argc) goto err;
- if (boolean)
- return Jim_EvalObj(interp, argv[current]);
- /* Ok: no else-clause follows */
- if (++current >= argc) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- return JIM_OK;
- }
- falsebody = current++;
- if (Jim_CompareStringImmediate(interp, argv[falsebody],
- "else")) {
- /* IIICKS - else-clause isn't last cmd? */
- if (current != argc-1) goto err;
- return Jim_EvalObj(interp, argv[current]);
- } else if (Jim_CompareStringImmediate(interp,
- argv[falsebody], "elseif"))
- /* Ok: elseif follows meaning all the stuff
- * again (how boring...) */
- continue;
- /* OOPS - else-clause is not last cmd?*/
- else if (falsebody != argc-1)
- goto err;
- return Jim_EvalObj(interp, argv[falsebody]);
- }
- return JIM_OK;
- }
-err:
- Jim_WrongNumArgs(interp, 1, argv, "condition ?then? trueBody ?elseif ...? ?else? falseBody");
- return JIM_ERR;
-}
-
-enum {SWITCH_EXACT, SWITCH_GLOB, SWITCH_RE, SWITCH_CMD, SWITCH_UNKNOWN};
-
-/* [switch] */
-static int Jim_SwitchCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int retcode = JIM_ERR, matchOpt = SWITCH_EXACT, opt = 1, patCount, i;
- Jim_Obj *command = 0, *const *caseList = 0, *strObj;
- Jim_Obj *script = 0;
- if (argc < 3) goto wrongnumargs;
- for (opt = 1; opt < argc; ++opt) {
- const char *option = Jim_GetString(argv[opt], 0);
- if (*option != '-') break;
- else if (strncmp(option, "--", 2) == 0) { ++opt; break; }
- else if (strncmp(option, "-exact", 2) == 0) matchOpt = SWITCH_EXACT;
- else if (strncmp(option, "-glob", 2) == 0) matchOpt = SWITCH_GLOB;
- else if (strncmp(option, "-regexp", 2) == 0) matchOpt = SWITCH_RE;
- else if (strncmp(option, "-command", 2) == 0) { matchOpt = SWITCH_CMD;
- if ((argc - opt) < 2) goto wrongnumargs;
- command = argv[++opt];
- } else {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "bad option \"", option, "\": must be -exact, -glob, "
- "-regexp, -command procname or --", 0);
- goto err;
- }
- if ((argc - opt) < 2) goto wrongnumargs;
- }
- strObj = argv[opt++];
- patCount = argc - opt;
- if (patCount == 1) {
- Jim_Obj **vector;
- JimListGetElements(interp, argv[opt], &patCount, &vector);
- caseList = vector;
- } else
- caseList = &argv[opt];
- if (patCount == 0 || patCount % 2 != 0) goto wrongnumargs;
- for (i = 0; script == 0 && i < patCount; i += 2) {
- Jim_Obj *patObj = caseList[i];
- if (!Jim_CompareStringImmediate(interp, patObj, "default")
- || i < (patCount-2)) {
- switch (matchOpt) {
- case SWITCH_EXACT:
- if (Jim_StringEqObj(strObj, patObj, 0))
- script = caseList[i + 1];
- break;
- case SWITCH_GLOB:
- if (Jim_StringMatchObj(patObj, strObj, 0))
- script = caseList[i + 1];
- break;
- case SWITCH_RE:
- command = Jim_NewStringObj(interp, "regexp", -1);
- /* Fall thru intentionally */
- case SWITCH_CMD: {
- Jim_Obj *parms[] = {command, patObj, strObj};
- int rc = Jim_EvalObjVector(interp, 3, parms);
- long matching;
- /* After the execution of a command we need to
- * make sure to reconvert the object into a list
- * again. Only for the single-list style [switch]. */
- if (argc-opt == 1) {
- Jim_Obj **vector;
- JimListGetElements(interp, argv[opt], &patCount,
- &vector);
- caseList = vector;
- }
- /* command is here already decref'd */
- if (rc != JIM_OK) {
- retcode = rc;
- goto err;
- }
- rc = Jim_GetLong(interp, Jim_GetResult(interp), &matching);
- if (rc != JIM_OK) {
- retcode = rc;
- goto err;
- }
- if (matching)
- script = caseList[i + 1];
- break;
- }
- default:
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "internal error: no such option implemented", 0);
- goto err;
- }
- } else {
- script = caseList[i + 1];
- }
- }
- for (; i < patCount && Jim_CompareStringImmediate(interp, script, "-");
- i += 2)
- script = caseList[i + 1];
- if (script && Jim_CompareStringImmediate(interp, script, "-")) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "no body specified for pattern \"",
- Jim_GetString(caseList[i-2], 0), "\"", 0);
- goto err;
- }
- retcode = JIM_OK;
- Jim_SetEmptyResult(interp);
- if (script != 0)
- retcode = Jim_EvalObj(interp, script);
- return retcode;
-wrongnumargs:
- Jim_WrongNumArgs(interp, 1, argv, "?options? string "
- "pattern body ... ?default body? or "
- "{pattern body ?pattern body ...?}");
-err:
- return retcode;
-}
-
-/* [list] */
-static int Jim_ListCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- Jim_Obj *listObjPtr;
-
- listObjPtr = Jim_NewListObj(interp, argv + 1, argc-1);
- Jim_SetResult(interp, listObjPtr);
- return JIM_OK;
-}
-
-/* [lindex] */
-static int Jim_LindexCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- Jim_Obj *objPtr, *listObjPtr;
- int i;
- int index_t;
-
- if (argc < 3) {
- Jim_WrongNumArgs(interp, 1, argv, "list index ?...?");
- return JIM_ERR;
- }
- objPtr = argv[1];
- Jim_IncrRefCount(objPtr);
- for (i = 2; i < argc; i++) {
- listObjPtr = objPtr;
- if (Jim_GetIndex(interp, argv[i], &index_t) != JIM_OK) {
- Jim_DecrRefCount(interp, listObjPtr);
- return JIM_ERR;
- }
- if (Jim_ListIndex(interp, listObjPtr, index_t, &objPtr,
- JIM_NONE) != JIM_OK) {
- /* Returns an empty object if the index
- * is out of range. */
- Jim_DecrRefCount(interp, listObjPtr);
- Jim_SetEmptyResult(interp);
- return JIM_OK;
- }
- Jim_IncrRefCount(objPtr);
- Jim_DecrRefCount(interp, listObjPtr);
- }
- Jim_SetResult(interp, objPtr);
- Jim_DecrRefCount(interp, objPtr);
- return JIM_OK;
-}
-
-/* [llength] */
-static int Jim_LlengthCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int len;
-
- if (argc != 2) {
- Jim_WrongNumArgs(interp, 1, argv, "list");
- return JIM_ERR;
- }
- Jim_ListLength(interp, argv[1], &len);
- Jim_SetResult(interp, Jim_NewIntObj(interp, len));
- return JIM_OK;
-}
-
-/* [lappend] */
-static int Jim_LappendCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- Jim_Obj *listObjPtr;
- int shared, i;
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "varName ?value value ...?");
- return JIM_ERR;
- }
- listObjPtr = Jim_GetVariable(interp, argv[1], JIM_NONE);
- if (!listObjPtr) {
- /* Create the list if it does not exists */
- listObjPtr = Jim_NewListObj(interp, NULL, 0);
- if (Jim_SetVariable(interp, argv[1], listObjPtr) != JIM_OK) {
- Jim_FreeNewObj(interp, listObjPtr);
- return JIM_ERR;
- }
- }
- shared = Jim_IsShared(listObjPtr);
- if (shared)
- listObjPtr = Jim_DuplicateObj(interp, listObjPtr);
- for (i = 2; i < argc; i++)
- Jim_ListAppendElement(interp, listObjPtr, argv[i]);
- if (Jim_SetVariable(interp, argv[1], listObjPtr) != JIM_OK) {
- if (shared)
- Jim_FreeNewObj(interp, listObjPtr);
- return JIM_ERR;
- }
- Jim_SetResult(interp, listObjPtr);
- return JIM_OK;
-}
-
-/* [linsert] */
-static int Jim_LinsertCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int index_t, len;
- Jim_Obj *listPtr;
-
- if (argc < 4) {
- Jim_WrongNumArgs(interp, 1, argv, "list index element "
- "?element ...?");
- return JIM_ERR;
- }
- listPtr = argv[1];
- if (Jim_IsShared(listPtr))
- listPtr = Jim_DuplicateObj(interp, listPtr);
- if (Jim_GetIndex(interp, argv[2], &index_t) != JIM_OK)
- goto err;
- Jim_ListLength(interp, listPtr, &len);
- if (index_t >= len)
- index_t = len;
- else if (index_t < 0)
- index_t = len + index_t + 1;
- Jim_ListInsertElements(interp, listPtr, index_t, argc-3, &argv[3]);
- Jim_SetResult(interp, listPtr);
- return JIM_OK;
-err:
- if (listPtr != argv[1]) {
- Jim_FreeNewObj(interp, listPtr);
- }
- return JIM_ERR;
-}
-
-/* [lset] */
-static int Jim_LsetCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- if (argc < 3) {
- Jim_WrongNumArgs(interp, 1, argv, "listVar ?index...? newVal");
- return JIM_ERR;
- } else if (argc == 3) {
- if (Jim_SetVariable(interp, argv[1], argv[2]) != JIM_OK)
- return JIM_ERR;
- Jim_SetResult(interp, argv[2]);
- return JIM_OK;
- }
- if (Jim_SetListIndex(interp, argv[1], argv + 2, argc-3, argv[argc-1])
- == JIM_ERR) return JIM_ERR;
- return JIM_OK;
-}
-
-/* [lsort] */
-static int Jim_LsortCoreCommand(Jim_Interp *interp, int argc, Jim_Obj *const argv[])
-{
- const char *options[] = {
- "-ascii", "-nocase", "-increasing", "-decreasing", NULL
- };
- enum {OPT_ASCII, OPT_NOCASE, OPT_INCREASING, OPT_DECREASING};
- Jim_Obj *resObj;
- int i, lsortType = JIM_LSORT_ASCII; /* default sort type */
- int decreasing = 0;
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "?options? list");
- return JIM_ERR;
- }
- for (i = 1; i < (argc-1); i++) {
- int option;
-
- if (Jim_GetEnum(interp, argv[i], options, &option, "option", JIM_ERRMSG)
- != JIM_OK)
- return JIM_ERR;
- switch (option) {
- case OPT_ASCII: lsortType = JIM_LSORT_ASCII; break;
- case OPT_NOCASE: lsortType = JIM_LSORT_NOCASE; break;
- case OPT_INCREASING: decreasing = 0; break;
- case OPT_DECREASING: decreasing = 1; break;
- }
- }
- if (decreasing) {
- switch (lsortType) {
- case JIM_LSORT_ASCII: lsortType = JIM_LSORT_ASCII_DECR; break;
- case JIM_LSORT_NOCASE: lsortType = JIM_LSORT_NOCASE_DECR; break;
- }
- }
- resObj = Jim_DuplicateObj(interp, argv[argc-1]);
- ListSortElements(interp, resObj, lsortType);
- Jim_SetResult(interp, resObj);
- return JIM_OK;
-}
-
-/* [append] */
-static int Jim_AppendCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- Jim_Obj *stringObjPtr;
- int shared, i;
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "varName ?value value ...?");
- return JIM_ERR;
- }
- if (argc == 2) {
- stringObjPtr = Jim_GetVariable(interp, argv[1], JIM_ERRMSG);
- if (!stringObjPtr) return JIM_ERR;
- } else {
- stringObjPtr = Jim_GetVariable(interp, argv[1], JIM_NONE);
- if (!stringObjPtr) {
- /* Create the string if it does not exists */
- stringObjPtr = Jim_NewEmptyStringObj(interp);
- if (Jim_SetVariable(interp, argv[1], stringObjPtr)
- != JIM_OK) {
- Jim_FreeNewObj(interp, stringObjPtr);
- return JIM_ERR;
- }
- }
- }
- shared = Jim_IsShared(stringObjPtr);
- if (shared)
- stringObjPtr = Jim_DuplicateObj(interp, stringObjPtr);
- for (i = 2; i < argc; i++)
- Jim_AppendObj(interp, stringObjPtr, argv[i]);
- if (Jim_SetVariable(interp, argv[1], stringObjPtr) != JIM_OK) {
- if (shared)
- Jim_FreeNewObj(interp, stringObjPtr);
- return JIM_ERR;
- }
- Jim_SetResult(interp, stringObjPtr);
- return JIM_OK;
-}
-
-/* [debug] */
-static int Jim_DebugCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- const char *options[] = {
- "refcount", "objcount", "objects", "invstr", "scriptlen", "exprlen",
- "exprbc",
- NULL
- };
- enum {
- OPT_REFCOUNT, OPT_OBJCOUNT, OPT_OBJECTS, OPT_INVSTR, OPT_SCRIPTLEN,
- OPT_EXPRLEN, OPT_EXPRBC
- };
- int option;
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "option ?...?");
- return JIM_ERR;
- }
- if (Jim_GetEnum(interp, argv[1], options, &option, "option",
- JIM_ERRMSG) != JIM_OK)
- return JIM_ERR;
- if (option == OPT_REFCOUNT) {
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 2, argv, "object");
- return JIM_ERR;
- }
- Jim_SetResult(interp, Jim_NewIntObj(interp, argv[2]->refCount));
- return JIM_OK;
- } else if (option == OPT_OBJCOUNT) {
- int freeobj = 0, liveobj = 0;
- char buf[256];
- Jim_Obj *objPtr;
-
- if (argc != 2) {
- Jim_WrongNumArgs(interp, 2, argv, "");
- return JIM_ERR;
- }
- /* Count the number of free objects. */
- objPtr = interp->freeList;
- while (objPtr) {
- freeobj++;
- objPtr = objPtr->nextObjPtr;
- }
- /* Count the number of live objects. */
- objPtr = interp->liveList;
- while (objPtr) {
- liveobj++;
- objPtr = objPtr->nextObjPtr;
- }
- /* Set the result string and return. */
- sprintf(buf, "free %d used %d", freeobj, liveobj);
- Jim_SetResultString(interp, buf, -1);
- return JIM_OK;
- } else if (option == OPT_OBJECTS) {
- Jim_Obj *objPtr, *listObjPtr, *subListObjPtr;
- /* Count the number of live objects. */
- objPtr = interp->liveList;
- listObjPtr = Jim_NewListObj(interp, NULL, 0);
- while (objPtr) {
- char buf[128];
- const char *type = objPtr->typePtr ?
- objPtr->typePtr->name : "";
- subListObjPtr = Jim_NewListObj(interp, NULL, 0);
- sprintf(buf, "%p", objPtr);
- Jim_ListAppendElement(interp, subListObjPtr,
- Jim_NewStringObj(interp, buf, -1));
- Jim_ListAppendElement(interp, subListObjPtr,
- Jim_NewStringObj(interp, type, -1));
- Jim_ListAppendElement(interp, subListObjPtr,
- Jim_NewIntObj(interp, objPtr->refCount));
- Jim_ListAppendElement(interp, subListObjPtr, objPtr);
- Jim_ListAppendElement(interp, listObjPtr, subListObjPtr);
- objPtr = objPtr->nextObjPtr;
- }
- Jim_SetResult(interp, listObjPtr);
- return JIM_OK;
- } else if (option == OPT_INVSTR) {
- Jim_Obj *objPtr;
-
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 2, argv, "object");
- return JIM_ERR;
- }
- objPtr = argv[2];
- if (objPtr->typePtr != NULL)
- Jim_InvalidateStringRep(objPtr);
- Jim_SetEmptyResult(interp);
- return JIM_OK;
- } else if (option == OPT_SCRIPTLEN) {
- ScriptObj *script;
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 2, argv, "script");
- return JIM_ERR;
- }
- script = Jim_GetScript(interp, argv[2]);
- Jim_SetResult(interp, Jim_NewIntObj(interp, script->len));
- return JIM_OK;
- } else if (option == OPT_EXPRLEN) {
- ExprByteCode *expr;
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 2, argv, "expression");
- return JIM_ERR;
- }
- expr = Jim_GetExpression(interp, argv[2]);
- if (expr == NULL)
- return JIM_ERR;
- Jim_SetResult(interp, Jim_NewIntObj(interp, expr->len));
- return JIM_OK;
- } else if (option == OPT_EXPRBC) {
- Jim_Obj *objPtr;
- ExprByteCode *expr;
- int i;
-
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 2, argv, "expression");
- return JIM_ERR;
- }
- expr = Jim_GetExpression(interp, argv[2]);
- if (expr == NULL)
- return JIM_ERR;
- objPtr = Jim_NewListObj(interp, NULL, 0);
- for (i = 0; i < expr->len; i++) {
- const char *type;
- Jim_ExprOperator *op;
-
- switch (expr->opcode[i]) {
- case JIM_EXPROP_NUMBER: type = "number"; break;
- case JIM_EXPROP_COMMAND: type = "command"; break;
- case JIM_EXPROP_VARIABLE: type = "variable"; break;
- case JIM_EXPROP_DICTSUGAR: type = "dictsugar"; break;
- case JIM_EXPROP_SUBST: type = "subst"; break;
- case JIM_EXPROP_STRING: type = "string"; break;
- default:
- op = JimExprOperatorInfo(Jim_GetString(expr->obj[i], NULL));
- if (op == NULL) {
- type = "private";
- } else {
- type = "operator";
- }
- break;
- }
- Jim_ListAppendElement(interp, objPtr,
- Jim_NewStringObj(interp, type, -1));
- Jim_ListAppendElement(interp, objPtr, expr->obj[i]);
- }
- Jim_SetResult(interp, objPtr);
- return JIM_OK;
- } else {
- Jim_SetResultString(interp,
- "bad option. Valid options are refcount, "
- "objcount, objects, invstr", -1);
- return JIM_ERR;
- }
- return JIM_OK; /* unreached */
-}
-
-/* [eval] */
-static int Jim_EvalCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- if (argc == 2) {
- return Jim_EvalObj(interp, argv[1]);
- } else if (argc > 2) {
- Jim_Obj *objPtr;
- int retcode;
-
- objPtr = Jim_ConcatObj(interp, argc-1, argv + 1);
- Jim_IncrRefCount(objPtr);
- retcode = Jim_EvalObj(interp, objPtr);
- Jim_DecrRefCount(interp, objPtr);
- return retcode;
- } else {
- Jim_WrongNumArgs(interp, 1, argv, "script ?...?");
- return JIM_ERR;
- }
-}
-
-/* [uplevel] */
-static int Jim_UplevelCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- if (argc >= 2) {
- int retcode, newLevel, oldLevel;
- Jim_CallFrame *savedCallFrame, *targetCallFrame;
- Jim_Obj *objPtr;
- const char *str;
-
- /* Save the old callframe pointer */
- savedCallFrame = interp->framePtr;
-
- /* Lookup the target frame pointer */
- str = Jim_GetString(argv[1], NULL);
- if ((str[0] >= '0' && str[0] <= '9') || str[0] == '#')
- {
- if (Jim_GetCallFrameByLevel(interp, argv[1],
- &targetCallFrame,
- &newLevel) != JIM_OK)
- return JIM_ERR;
- argc--;
- argv++;
- } else {
- if (Jim_GetCallFrameByLevel(interp, NULL,
- &targetCallFrame,
- &newLevel) != JIM_OK)
- return JIM_ERR;
- }
- if (argc < 2) {
- argc++;
- argv--;
- Jim_WrongNumArgs(interp, 1, argv,
- "?level? command ?arg ...?");
- return JIM_ERR;
- }
- /* Eval the code in the target callframe. */
- interp->framePtr = targetCallFrame;
- oldLevel = interp->numLevels;
- interp->numLevels = newLevel;
- if (argc == 2) {
- retcode = Jim_EvalObj(interp, argv[1]);
- } else {
- objPtr = Jim_ConcatObj(interp, argc-1, argv + 1);
- Jim_IncrRefCount(objPtr);
- retcode = Jim_EvalObj(interp, objPtr);
- Jim_DecrRefCount(interp, objPtr);
- }
- interp->numLevels = oldLevel;
- interp->framePtr = savedCallFrame;
- return retcode;
- } else {
- Jim_WrongNumArgs(interp, 1, argv, "?level? command ?arg ...?");
- return JIM_ERR;
- }
-}
-
-/* [expr] */
-static int Jim_ExprCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- Jim_Obj *exprResultPtr;
- int retcode;
-
- if (argc == 2) {
- retcode = Jim_EvalExpression(interp, argv[1], &exprResultPtr);
- } else if (argc > 2) {
- Jim_Obj *objPtr;
-
- objPtr = Jim_ConcatObj(interp, argc-1, argv + 1);
- Jim_IncrRefCount(objPtr);
- retcode = Jim_EvalExpression(interp, objPtr, &exprResultPtr);
- Jim_DecrRefCount(interp, objPtr);
- } else {
- Jim_WrongNumArgs(interp, 1, argv, "expression ?...?");
- return JIM_ERR;
- }
- if (retcode != JIM_OK) return retcode;
- Jim_SetResult(interp, exprResultPtr);
- Jim_DecrRefCount(interp, exprResultPtr);
- return JIM_OK;
-}
-
-/* [break] */
-static int Jim_BreakCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- if (argc != 1) {
- Jim_WrongNumArgs(interp, 1, argv, "");
- return JIM_ERR;
- }
- return JIM_BREAK;
-}
-
-/* [continue] */
-static int Jim_ContinueCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- if (argc != 1) {
- Jim_WrongNumArgs(interp, 1, argv, "");
- return JIM_ERR;
- }
- return JIM_CONTINUE;
-}
-
-/* [return] */
-static int Jim_ReturnCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- if (argc == 1) {
- return JIM_RETURN;
- } else if (argc == 2) {
- Jim_SetResult(interp, argv[1]);
- interp->returnCode = JIM_OK;
- return JIM_RETURN;
- } else if (argc == 3 || argc == 4) {
- int returnCode;
- if (Jim_GetReturnCode(interp, argv[2], &returnCode) == JIM_ERR)
- return JIM_ERR;
- interp->returnCode = returnCode;
- if (argc == 4)
- Jim_SetResult(interp, argv[3]);
- return JIM_RETURN;
- } else {
- Jim_WrongNumArgs(interp, 1, argv, "?-code code? ?result?");
- return JIM_ERR;
- }
- return JIM_RETURN; /* unreached */
-}
-
-/* [tailcall] */
-static int Jim_TailcallCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- Jim_Obj *objPtr;
-
- objPtr = Jim_NewListObj(interp, argv + 1, argc-1);
- Jim_SetResult(interp, objPtr);
- return JIM_EVAL;
-}
-
-/* [proc] */
-static int Jim_ProcCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int argListLen;
- int arityMin, arityMax;
-
- if (argc != 4 && argc != 5) {
- Jim_WrongNumArgs(interp, 1, argv, "name arglist ?statics? body");
- return JIM_ERR;
- }
- Jim_ListLength(interp, argv[2], &argListLen);
- arityMin = arityMax = argListLen + 1;
-
- if (argListLen) {
- const char *str;
- int len;
- Jim_Obj *argPtr=NULL;
-
- /* Check for 'args' and adjust arityMin and arityMax if necessary */
- Jim_ListIndex(interp, argv[2], argListLen-1, &argPtr, JIM_NONE);
- str = Jim_GetString(argPtr, &len);
- if (len == 4 && memcmp(str, "args", 4) == 0) {
- arityMin--;
- arityMax = -1;
- }
-
- /* Check for default arguments and reduce arityMin if necessary */
- while (arityMin > 1) {
- Jim_ListIndex(interp, argv[2], arityMin - 2, &argPtr, JIM_NONE);
- Jim_ListLength(interp, argPtr, &len);
- if (len != 2) {
- /* No default argument */
- break;
- }
- arityMin--;
- }
- }
- if (argc == 4) {
- return Jim_CreateProcedure(interp, Jim_GetString(argv[1], NULL),
- argv[2], NULL, argv[3], arityMin, arityMax);
- } else {
- return Jim_CreateProcedure(interp, Jim_GetString(argv[1], NULL),
- argv[2], argv[3], argv[4], arityMin, arityMax);
- }
-}
-
-/* [concat] */
-static int Jim_ConcatCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- Jim_SetResult(interp, Jim_ConcatObj(interp, argc-1, argv + 1));
- return JIM_OK;
-}
-
-/* [upvar] */
-static int Jim_UpvarCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- const char *str;
- int i;
- Jim_CallFrame *targetCallFrame;
-
- /* Lookup the target frame pointer */
- str = Jim_GetString(argv[1], NULL);
- if (argc > 3 &&
- ((str[0] >= '0' && str[0] <= '9') || str[0] == '#'))
- {
- if (Jim_GetCallFrameByLevel(interp, argv[1],
- &targetCallFrame, NULL) != JIM_OK)
- return JIM_ERR;
- argc--;
- argv++;
- } else {
- if (Jim_GetCallFrameByLevel(interp, NULL,
- &targetCallFrame, NULL) != JIM_OK)
- return JIM_ERR;
- }
- /* Check for arity */
- if (argc < 3 || ((argc-1)%2) != 0) {
- Jim_WrongNumArgs(interp, 1, argv, "?level? otherVar localVar ?otherVar localVar ...?");
- return JIM_ERR;
- }
- /* Now... for every other/local couple: */
- for (i = 1; i < argc; i += 2) {
- if (Jim_SetVariableLink(interp, argv[i + 1], argv[i],
- targetCallFrame) != JIM_OK) return JIM_ERR;
- }
- return JIM_OK;
-}
-
-/* [global] */
-static int Jim_GlobalCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int i;
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "varName ?varName ...?");
- return JIM_ERR;
- }
- /* Link every var to the toplevel having the same name */
- if (interp->numLevels == 0) return JIM_OK; /* global at toplevel... */
- for (i = 1; i < argc; i++) {
- if (Jim_SetVariableLink(interp, argv[i], argv[i],
- interp->topFramePtr) != JIM_OK) return JIM_ERR;
- }
- return JIM_OK;
-}
-
-/* does the [string map] operation. On error NULL is returned,
- * otherwise a new string object with the result, having refcount = 0,
- * is returned. */
-static Jim_Obj *JimStringMap(Jim_Interp *interp, Jim_Obj *mapListObjPtr,
- Jim_Obj *objPtr, int nocase)
-{
- int numMaps;
- const char **key, *str, *noMatchStart = NULL;
- Jim_Obj **value;
- int *keyLen, strLen, i;
- Jim_Obj *resultObjPtr;
-
- Jim_ListLength(interp, mapListObjPtr, &numMaps);
- if (numMaps % 2) {
- Jim_SetResultString(interp,
- "list must contain an even number of elements", -1);
- return NULL;
- }
- /* Initialization */
- numMaps /= 2;
- key = Jim_Alloc(sizeof(char*)*numMaps);
- keyLen = Jim_Alloc(sizeof(int)*numMaps);
- value = Jim_Alloc(sizeof(Jim_Obj*)*numMaps);
- resultObjPtr = Jim_NewStringObj(interp, "", 0);
- for (i = 0; i < numMaps; i++) {
- Jim_Obj *eleObjPtr=NULL;
-
- Jim_ListIndex(interp, mapListObjPtr, i*2, &eleObjPtr, JIM_NONE);
- key[i] = Jim_GetString(eleObjPtr, &keyLen[i]);
- Jim_ListIndex(interp, mapListObjPtr, i*2 + 1, &eleObjPtr, JIM_NONE);
- value[i] = eleObjPtr;
- }
- str = Jim_GetString(objPtr, &strLen);
- /* Map it */
- while (strLen) {
- for (i = 0; i < numMaps; i++) {
- if (strLen >= keyLen[i] && keyLen[i]) {
- if (!JimStringCompare(str, keyLen[i], key[i], keyLen[i],
- nocase))
- {
- if (noMatchStart) {
- Jim_AppendString(interp, resultObjPtr,
- noMatchStart, str-noMatchStart);
- noMatchStart = NULL;
- }
- Jim_AppendObj(interp, resultObjPtr, value[i]);
- str += keyLen[i];
- strLen -= keyLen[i];
- break;
- }
- }
- }
- if (i == numMaps) { /* no match */
- if (noMatchStart == NULL)
- noMatchStart = str;
- str ++;
- strLen --;
- }
- }
- if (noMatchStart) {
- Jim_AppendString(interp, resultObjPtr,
- noMatchStart, str-noMatchStart);
- }
- Jim_Free((void*)key);
- Jim_Free(keyLen);
- Jim_Free(value);
- return resultObjPtr;
-}
-
-/* [string] */
-static int Jim_StringCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int option;
- const char *options[] = {
- "length", "compare", "match", "equal", "range", "map", "repeat",
- "index", "first", "tolower", "toupper", NULL
- };
- enum {
- OPT_LENGTH, OPT_COMPARE, OPT_MATCH, OPT_EQUAL, OPT_RANGE,
- OPT_MAP, OPT_REPEAT, OPT_INDEX, OPT_FIRST, OPT_TOLOWER, OPT_TOUPPER
- };
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "option ?arguments ...?");
- return JIM_ERR;
- }
- if (Jim_GetEnum(interp, argv[1], options, &option, "option",
- JIM_ERRMSG) != JIM_OK)
- return JIM_ERR;
-
- if (option == OPT_LENGTH) {
- int len;
-
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 2, argv, "string");
- return JIM_ERR;
- }
- Jim_GetString(argv[2], &len);
- Jim_SetResult(interp, Jim_NewIntObj(interp, len));
- return JIM_OK;
- } else if (option == OPT_COMPARE) {
- int nocase = 0;
- if ((argc != 4 && argc != 5) ||
- (argc == 5 && Jim_CompareStringImmediate(interp,
- argv[2], "-nocase") == 0)) {
- Jim_WrongNumArgs(interp, 2, argv, "string1 string2");
- return JIM_ERR;
- }
- if (argc == 5) {
- nocase = 1;
- argv++;
- }
- Jim_SetResult(interp, Jim_NewIntObj(interp,
- Jim_StringCompareObj(argv[2],
- argv[3], nocase)));
- return JIM_OK;
- } else if (option == OPT_MATCH) {
- int nocase = 0;
- if ((argc != 4 && argc != 5) ||
- (argc == 5 && Jim_CompareStringImmediate(interp,
- argv[2], "-nocase") == 0)) {
- Jim_WrongNumArgs(interp, 2, argv, "?-nocase? pattern "
- "string");
- return JIM_ERR;
- }
- if (argc == 5) {
- nocase = 1;
- argv++;
- }
- Jim_SetResult(interp,
- Jim_NewIntObj(interp, Jim_StringMatchObj(argv[2],
- argv[3], nocase)));
- return JIM_OK;
- } else if (option == OPT_EQUAL) {
- if (argc != 4) {
- Jim_WrongNumArgs(interp, 2, argv, "string1 string2");
- return JIM_ERR;
- }
- Jim_SetResult(interp,
- Jim_NewIntObj(interp, Jim_StringEqObj(argv[2],
- argv[3], 0)));
- return JIM_OK;
- } else if (option == OPT_RANGE) {
- Jim_Obj *objPtr;
-
- if (argc != 5) {
- Jim_WrongNumArgs(interp, 2, argv, "string first last");
- return JIM_ERR;
- }
- objPtr = Jim_StringRangeObj(interp, argv[2], argv[3], argv[4]);
- if (objPtr == NULL)
- return JIM_ERR;
- Jim_SetResult(interp, objPtr);
- return JIM_OK;
- } else if (option == OPT_MAP) {
- int nocase = 0;
- Jim_Obj *objPtr;
-
- if ((argc != 4 && argc != 5) ||
- (argc == 5 && Jim_CompareStringImmediate(interp,
- argv[2], "-nocase") == 0)) {
- Jim_WrongNumArgs(interp, 2, argv, "?-nocase? mapList "
- "string");
- return JIM_ERR;
- }
- if (argc == 5) {
- nocase = 1;
- argv++;
- }
- objPtr = JimStringMap(interp, argv[2], argv[3], nocase);
- if (objPtr == NULL)
- return JIM_ERR;
- Jim_SetResult(interp, objPtr);
- return JIM_OK;
- } else if (option == OPT_REPEAT) {
- Jim_Obj *objPtr;
- jim_wide count;
-
- if (argc != 4) {
- Jim_WrongNumArgs(interp, 2, argv, "string count");
- return JIM_ERR;
- }
- if (Jim_GetWide(interp, argv[3], &count) != JIM_OK)
- return JIM_ERR;
- objPtr = Jim_NewStringObj(interp, "", 0);
- while (count--) {
- Jim_AppendObj(interp, objPtr, argv[2]);
- }
- Jim_SetResult(interp, objPtr);
- return JIM_OK;
- } else if (option == OPT_INDEX) {
- int index_t, len;
- const char *str;
-
- if (argc != 4) {
- Jim_WrongNumArgs(interp, 2, argv, "string index");
- return JIM_ERR;
- }
- if (Jim_GetIndex(interp, argv[3], &index_t) != JIM_OK)
- return JIM_ERR;
- str = Jim_GetString(argv[2], &len);
- if (index_t != INT_MIN && index_t != INT_MAX)
- index_t = JimRelToAbsIndex(len, index_t);
- if (index_t < 0 || index_t >= len) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- return JIM_OK;
- } else {
- Jim_SetResult(interp, Jim_NewStringObj(interp, str + index_t, 1));
- return JIM_OK;
- }
- } else if (option == OPT_FIRST) {
- int index_t = 0, l1, l2;
- const char *s1, *s2;
-
- if (argc != 4 && argc != 5) {
- Jim_WrongNumArgs(interp, 2, argv, "subString string ?startIndex?");
- return JIM_ERR;
- }
- s1 = Jim_GetString(argv[2], &l1);
- s2 = Jim_GetString(argv[3], &l2);
- if (argc == 5) {
- if (Jim_GetIndex(interp, argv[4], &index_t) != JIM_OK)
- return JIM_ERR;
- index_t = JimRelToAbsIndex(l2, index_t);
- }
- Jim_SetResult(interp, Jim_NewIntObj(interp,
- JimStringFirst(s1, l1, s2, l2, index_t)));
- return JIM_OK;
- } else if (option == OPT_TOLOWER) {
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 2, argv, "string");
- return JIM_ERR;
- }
- Jim_SetResult(interp, JimStringToLower(interp, argv[2]));
- } else if (option == OPT_TOUPPER) {
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 2, argv, "string");
- return JIM_ERR;
- }
- Jim_SetResult(interp, JimStringToUpper(interp, argv[2]));
- }
- return JIM_OK;
-}
-
-/* [time] */
-static int Jim_TimeCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- long i, count = 1;
- jim_wide start, elapsed;
- char buf [256];
- const char *fmt = "%" JIM_WIDE_MODIFIER " microseconds per iteration";
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "script ?count?");
- return JIM_ERR;
- }
- if (argc == 3) {
- if (Jim_GetLong(interp, argv[2], &count) != JIM_OK)
- return JIM_ERR;
- }
- if (count < 0)
- return JIM_OK;
- i = count;
- start = JimClock();
- while (i-- > 0) {
- int retval;
-
- if ((retval = Jim_EvalObj(interp, argv[1])) != JIM_OK)
- return retval;
- }
- elapsed = JimClock() - start;
- sprintf(buf, fmt, elapsed/count);
- Jim_SetResultString(interp, buf, -1);
- return JIM_OK;
-}
-
-/* [exit] */
-static int Jim_ExitCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- long exitCode = 0;
-
- if (argc > 2) {
- Jim_WrongNumArgs(interp, 1, argv, "?exitCode?");
- return JIM_ERR;
- }
- if (argc == 2) {
- if (Jim_GetLong(interp, argv[1], &exitCode) != JIM_OK)
- return JIM_ERR;
- }
- interp->exitCode = exitCode;
- return JIM_EXIT;
-}
-
-/* [catch] */
-static int Jim_CatchCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int exitCode = 0;
-
- if (argc != 2 && argc != 3) {
- Jim_WrongNumArgs(interp, 1, argv, "script ?varName?");
- return JIM_ERR;
- }
- exitCode = Jim_EvalObj(interp, argv[1]);
- if (argc == 3) {
- if (Jim_SetVariable(interp, argv[2], Jim_GetResult(interp))
- != JIM_OK)
- return JIM_ERR;
- }
- Jim_SetResult(interp, Jim_NewIntObj(interp, exitCode));
- return JIM_OK;
-}
-
-/* [ref] */
-static int Jim_RefCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- if (argc != 3 && argc != 4) {
- Jim_WrongNumArgs(interp, 1, argv, "string tag ?finalizer?");
- return JIM_ERR;
- }
- if (argc == 3) {
- Jim_SetResult(interp, Jim_NewReference(interp, argv[1], argv[2], NULL));
- } else {
- Jim_SetResult(interp, Jim_NewReference(interp, argv[1], argv[2],
- argv[3]));
- }
- return JIM_OK;
-}
-
-/* [getref] */
-static int Jim_GetrefCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- Jim_Reference *refPtr;
-
- if (argc != 2) {
- Jim_WrongNumArgs(interp, 1, argv, "reference");
- return JIM_ERR;
- }
- if ((refPtr = Jim_GetReference(interp, argv[1])) == NULL)
- return JIM_ERR;
- Jim_SetResult(interp, refPtr->objPtr);
- return JIM_OK;
-}
-
-/* [setref] */
-static int Jim_SetrefCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- Jim_Reference *refPtr;
-
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 1, argv, "reference newValue");
- return JIM_ERR;
- }
- if ((refPtr = Jim_GetReference(interp, argv[1])) == NULL)
- return JIM_ERR;
- Jim_IncrRefCount(argv[2]);
- Jim_DecrRefCount(interp, refPtr->objPtr);
- refPtr->objPtr = argv[2];
- Jim_SetResult(interp, argv[2]);
- return JIM_OK;
-}
-
-/* [collect] */
-static int Jim_CollectCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- if (argc != 1) {
- Jim_WrongNumArgs(interp, 1, argv, "");
- return JIM_ERR;
- }
- Jim_SetResult(interp, Jim_NewIntObj(interp, Jim_Collect(interp)));
- return JIM_OK;
-}
-
-/* [finalize] reference ?newValue? */
-static int Jim_FinalizeCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- if (argc != 2 && argc != 3) {
- Jim_WrongNumArgs(interp, 1, argv, "reference ?finalizerProc?");
- return JIM_ERR;
- }
- if (argc == 2) {
- Jim_Obj *cmdNamePtr;
-
- if (Jim_GetFinalizer(interp, argv[1], &cmdNamePtr) != JIM_OK)
- return JIM_ERR;
- if (cmdNamePtr != NULL) /* otherwise the null string is returned. */
- Jim_SetResult(interp, cmdNamePtr);
- } else {
- if (Jim_SetFinalizer(interp, argv[1], argv[2]) != JIM_OK)
- return JIM_ERR;
- Jim_SetResult(interp, argv[2]);
- }
- return JIM_OK;
-}
-
-/* TODO */
-/* [info references] (list of all the references/finalizers) */
-
-/* [rename] */
-static int Jim_RenameCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- const char *oldName, *newName;
-
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 1, argv, "oldName newName");
- return JIM_ERR;
- }
- oldName = Jim_GetString(argv[1], NULL);
- newName = Jim_GetString(argv[2], NULL);
- if (Jim_RenameCommand(interp, oldName, newName) != JIM_OK) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "can't rename \"", oldName, "\": ",
- "command doesn't exist", NULL);
- return JIM_ERR;
- }
- return JIM_OK;
-}
-
-/* [dict] */
-static int Jim_DictCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int option;
- const char *options[] = {
- "create", "get", "set", "unset", "exists", NULL
- };
- enum {
- OPT_CREATE, OPT_GET, OPT_SET, OPT_UNSET, OPT_EXIST
- };
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "option ?arguments ...?");
- return JIM_ERR;
- }
-
- if (Jim_GetEnum(interp, argv[1], options, &option, "option",
- JIM_ERRMSG) != JIM_OK)
- return JIM_ERR;
-
- if (option == OPT_CREATE) {
- Jim_Obj *objPtr;
-
- if (argc % 2) {
- Jim_WrongNumArgs(interp, 2, argv, "?key value ...?");
- return JIM_ERR;
- }
- objPtr = Jim_NewDictObj(interp, argv + 2, argc-2);
- Jim_SetResult(interp, objPtr);
- return JIM_OK;
- } else if (option == OPT_GET) {
- Jim_Obj *objPtr;
-
- if (Jim_DictKeysVector(interp, argv[2], argv + 3, argc-3, &objPtr,
- JIM_ERRMSG) != JIM_OK)
- return JIM_ERR;
- Jim_SetResult(interp, objPtr);
- return JIM_OK;
- } else if (option == OPT_SET) {
- if (argc < 5) {
- Jim_WrongNumArgs(interp, 2, argv, "varName key ?key ...? value");
- return JIM_ERR;
- }
- return Jim_SetDictKeysVector(interp, argv[2], argv + 3, argc-4,
- argv[argc-1]);
- } else if (option == OPT_UNSET) {
- if (argc < 4) {
- Jim_WrongNumArgs(interp, 2, argv, "varName key ?key ...?");
- return JIM_ERR;
- }
- return Jim_SetDictKeysVector(interp, argv[2], argv + 3, argc-3,
- NULL);
- } else if (option == OPT_EXIST) {
- Jim_Obj *objPtr;
- int exists;
-
- if (Jim_DictKeysVector(interp, argv[2], argv + 3, argc-3, &objPtr,
- JIM_ERRMSG) == JIM_OK)
- exists = 1;
- else
- exists = 0;
- Jim_SetResult(interp, Jim_NewIntObj(interp, exists));
- return JIM_OK;
- } else {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "bad option \"", Jim_GetString(argv[1], NULL), "\":",
- " must be create, get, set", NULL);
- return JIM_ERR;
- }
- return JIM_OK;
-}
-
-/* [load] */
-static int Jim_LoadCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "libaryFile");
- return JIM_ERR;
- }
- return Jim_LoadLibrary(interp, Jim_GetString(argv[1], NULL));
-}
-
-/* [subst] */
-static int Jim_SubstCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int i, flags = 0;
- Jim_Obj *objPtr;
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv,
- "?-nobackslashes? ?-nocommands? ?-novariables? string");
- return JIM_ERR;
- }
- i = argc-2;
- while (i--) {
- if (Jim_CompareStringImmediate(interp, argv[i + 1],
- "-nobackslashes"))
- flags |= JIM_SUBST_NOESC;
- else if (Jim_CompareStringImmediate(interp, argv[i + 1],
- "-novariables"))
- flags |= JIM_SUBST_NOVAR;
- else if (Jim_CompareStringImmediate(interp, argv[i + 1],
- "-nocommands"))
- flags |= JIM_SUBST_NOCMD;
- else {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "bad option \"", Jim_GetString(argv[i + 1], NULL),
- "\": must be -nobackslashes, -nocommands, or "
- "-novariables", NULL);
- return JIM_ERR;
- }
- }
- if (Jim_SubstObj(interp, argv[argc-1], &objPtr, flags) != JIM_OK)
- return JIM_ERR;
- Jim_SetResult(interp, objPtr);
- return JIM_OK;
-}
-
-/* [info] */
-static int Jim_InfoCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int cmd, result = JIM_OK;
- static const char *commands[] = {
- "body", "commands", "exists", "globals", "level", "locals",
- "vars", "version", "complete", "args", "hostname", NULL
- };
- enum {INFO_BODY, INFO_COMMANDS, INFO_EXISTS, INFO_GLOBALS, INFO_LEVEL,
- INFO_LOCALS, INFO_VARS, INFO_VERSION, INFO_COMPLETE, INFO_ARGS, INFO_HOSTNAME};
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "command ?args ...?");
- return JIM_ERR;
- }
- if (Jim_GetEnum(interp, argv[1], commands, &cmd, "command", JIM_ERRMSG)
- != JIM_OK) {
- return JIM_ERR;
- }
-
- if (cmd == INFO_COMMANDS) {
- if (argc != 2 && argc != 3) {
- Jim_WrongNumArgs(interp, 2, argv, "?pattern?");
- return JIM_ERR;
- }
- if (argc == 3)
- Jim_SetResult(interp,JimCommandsList(interp, argv[2]));
- else
- Jim_SetResult(interp, JimCommandsList(interp, NULL));
- } else if (cmd == INFO_EXISTS) {
- Jim_Obj *exists;
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 2, argv, "varName");
- return JIM_ERR;
- }
- exists = Jim_GetVariable(interp, argv[2], 0);
- Jim_SetResult(interp, Jim_NewIntObj(interp, exists != 0));
- } else if (cmd == INFO_GLOBALS || cmd == INFO_LOCALS || cmd == INFO_VARS) {
- int mode;
- switch (cmd) {
- case INFO_GLOBALS: mode = JIM_VARLIST_GLOBALS; break;
- case INFO_LOCALS: mode = JIM_VARLIST_LOCALS; break;
- case INFO_VARS: mode = JIM_VARLIST_VARS; break;
- default: mode = 0; /* avoid warning */; break;
- }
- if (argc != 2 && argc != 3) {
- Jim_WrongNumArgs(interp, 2, argv, "?pattern?");
- return JIM_ERR;
- }
- if (argc == 3)
- Jim_SetResult(interp,JimVariablesList(interp, argv[2], mode));
- else
- Jim_SetResult(interp, JimVariablesList(interp, NULL, mode));
- } else if (cmd == INFO_LEVEL) {
- Jim_Obj *objPtr;
- switch (argc) {
- case 2:
- Jim_SetResult(interp,
- Jim_NewIntObj(interp, interp->numLevels));
- break;
- case 3:
- if (JimInfoLevel(interp, argv[2], &objPtr) != JIM_OK)
- return JIM_ERR;
- Jim_SetResult(interp, objPtr);
- break;
- default:
- Jim_WrongNumArgs(interp, 2, argv, "?levelNum?");
- return JIM_ERR;
- }
- } else if (cmd == INFO_BODY || cmd == INFO_ARGS) {
- Jim_Cmd *cmdPtr;
-
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 2, argv, "procname");
- return JIM_ERR;
- }
- if ((cmdPtr = Jim_GetCommand(interp, argv[2], JIM_ERRMSG)) == NULL)
- return JIM_ERR;
- if (cmdPtr->cmdProc != NULL) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "command \"", Jim_GetString(argv[2], NULL),
- "\" is not a procedure", NULL);
- return JIM_ERR;
- }
- if (cmd == INFO_BODY)
- Jim_SetResult(interp, cmdPtr->bodyObjPtr);
- else
- Jim_SetResult(interp, cmdPtr->argListObjPtr);
- } else if (cmd == INFO_VERSION) {
- char buf[(JIM_INTEGER_SPACE * 2) + 1];
- sprintf(buf, "%d.%d",
- JIM_VERSION / 100, JIM_VERSION % 100);
- Jim_SetResultString(interp, buf, -1);
- } else if (cmd == INFO_COMPLETE) {
- const char *s;
- int len;
-
- if (argc != 3) {
- Jim_WrongNumArgs(interp, 2, argv, "script");
- return JIM_ERR;
- }
- s = Jim_GetString(argv[2], &len);
- Jim_SetResult(interp,
- Jim_NewIntObj(interp, Jim_ScriptIsComplete(s, len, NULL)));
- } else if (cmd == INFO_HOSTNAME) {
- /* Redirect to os.hostname if it exists */
- Jim_Obj *command = Jim_NewStringObj(interp, "os.gethostname", -1);
- result = Jim_EvalObjVector(interp, 1, &command);
- }
- return result;
-}
-
-/* [split] */
-static int Jim_SplitCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- const char *str, *splitChars, *noMatchStart;
- int splitLen, strLen, i;
- Jim_Obj *resObjPtr;
-
- if (argc != 2 && argc != 3) {
- Jim_WrongNumArgs(interp, 1, argv, "string ?splitChars?");
- return JIM_ERR;
- }
- /* Init */
- if (argc == 2) {
- splitChars = " \n\t\r";
- splitLen = 4;
- } else {
- splitChars = Jim_GetString(argv[2], &splitLen);
- }
- str = Jim_GetString(argv[1], &strLen);
- if (!strLen) return JIM_OK;
- noMatchStart = str;
- resObjPtr = Jim_NewListObj(interp, NULL, 0);
- /* Split */
- if (splitLen) {
- while (strLen) {
- for (i = 0; i < splitLen; i++) {
- if (*str == splitChars[i]) {
- Jim_Obj *objPtr;
-
- objPtr = Jim_NewStringObj(interp, noMatchStart,
- (str-noMatchStart));
- Jim_ListAppendElement(interp, resObjPtr, objPtr);
- noMatchStart = str + 1;
- break;
- }
- }
- str ++;
- strLen --;
- }
- Jim_ListAppendElement(interp, resObjPtr,
- Jim_NewStringObj(interp, noMatchStart, (str-noMatchStart)));
- } else {
- /* This handles the special case of splitchars eq {}. This
- * is trivial but we want to perform object sharing as Tcl does. */
- Jim_Obj *objCache[256];
- const unsigned char *u = (unsigned char*) str;
- memset(objCache, 0, sizeof(objCache));
- for (i = 0; i < strLen; i++) {
- int c = u[i];
-
- if (objCache[c] == NULL)
- objCache[c] = Jim_NewStringObj(interp, (char*)u + i, 1);
- Jim_ListAppendElement(interp, resObjPtr, objCache[c]);
- }
- }
- Jim_SetResult(interp, resObjPtr);
- return JIM_OK;
-}
-
-/* [join] */
-static int Jim_JoinCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- const char *joinStr;
- int joinStrLen, i, listLen;
- Jim_Obj *resObjPtr;
-
- if (argc != 2 && argc != 3) {
- Jim_WrongNumArgs(interp, 1, argv, "list ?joinString?");
- return JIM_ERR;
- }
- /* Init */
- if (argc == 2) {
- joinStr = " ";
- joinStrLen = 1;
- } else {
- joinStr = Jim_GetString(argv[2], &joinStrLen);
- }
- Jim_ListLength(interp, argv[1], &listLen);
- resObjPtr = Jim_NewStringObj(interp, NULL, 0);
- /* Split */
- for (i = 0; i < listLen; i++) {
- Jim_Obj *objPtr=NULL;
-
- Jim_ListIndex(interp, argv[1], i, &objPtr, JIM_NONE);
- Jim_AppendObj(interp, resObjPtr, objPtr);
- if (i + 1 != listLen) {
- Jim_AppendString(interp, resObjPtr, joinStr, joinStrLen);
- }
- }
- Jim_SetResult(interp, resObjPtr);
- return JIM_OK;
-}
-
-/* [format] */
-static int Jim_FormatCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- Jim_Obj *objPtr;
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "formatString ?arg arg ...?");
- return JIM_ERR;
- }
- objPtr = Jim_FormatString(interp, argv[1], argc-2, argv + 2);
- if (objPtr == NULL)
- return JIM_ERR;
- Jim_SetResult(interp, objPtr);
- return JIM_OK;
-}
-
-/* [scan] */
-static int Jim_ScanCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- Jim_Obj *listPtr, **outVec;
- int outc, i, count = 0;
-
- if (argc < 3) {
- Jim_WrongNumArgs(interp, 1, argv, "string formatString ?varName ...?");
- return JIM_ERR;
- }
- if (argv[2]->typePtr != &scanFmtStringObjType)
- SetScanFmtFromAny(interp, argv[2]);
- if (FormatGetError(argv[2]) != 0) {
- Jim_SetResultString(interp, FormatGetError(argv[2]), -1);
- return JIM_ERR;
- }
- if (argc > 3) {
- int maxPos = FormatGetMaxPos(argv[2]);
- int arg_count = FormatGetCnvCount(argv[2]);
- if (maxPos > argc-3) {
- Jim_SetResultString(interp, "\"%n$\" argument index out of range", -1);
- return JIM_ERR;
- } else if (arg_count != 0 && arg_count < argc-3) {
- Jim_SetResultString(interp, "variable is not assigned by any "
- "conversion specifiers", -1);
- return JIM_ERR;
- } else if (arg_count > argc-3) {
- Jim_SetResultString(interp, "different numbers of variable names and "
- "field specifiers", -1);
- return JIM_ERR;
- }
- }
- listPtr = Jim_ScanString(interp, argv[1], argv[2], JIM_ERRMSG);
- if (listPtr == 0)
- return JIM_ERR;
- if (argc > 3) {
- int len = 0;
- if (listPtr != 0 && listPtr != (Jim_Obj*)EOF)
- Jim_ListLength(interp, listPtr, &len);
- if (listPtr == (Jim_Obj*)EOF || len == 0) { // XXX
- Jim_SetResult(interp, Jim_NewIntObj(interp, -1));
- return JIM_OK;
- }
- JimListGetElements(interp, listPtr, &outc, &outVec);
- for (i = 0; i < outc; ++i) {
- if (Jim_Len
-
-/* [error] */
-static int Jim_ErrorCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- if (argc != 2) {
- Jim_WrongNumArgs(interp, 1, argv, "message");
- return JIM_ERR;
- }
- Jim_SetResult(interp, argv[1]);
- return JIM_ERR;
-}
-
-/* [lrange] */
-static int Jim_LrangeCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- Jim_Obj *objPtr;
-
- if (argc != 4) {
- Jim_WrongNumArgs(interp, 1, argv, "list first last");
- return JIM_ERR;
- }
- if ((objPtr = Jim_ListRange(interp, argv[1], argv[2], argv[3])) == NULL)
- return JIM_ERR;
- Jim_SetResult(interp, objPtr);
- return JIM_OK;
-}
-
-/* [env] */
-static int Jim_EnvCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- const char *key;
- char *val;
-
- if (argc == 1) {
-
-#ifdef NEED_ENVIRON_EXTERN
- extern char **environ;
-#endif
-
- int i;
- Jim_Obj *listObjPtr = Jim_NewListObj(interp, NULL, 0);
-
- for (i = 0; environ[i]; i++) {
- const char *equals = strchr(environ[i], '=');
- if (equals) {
- Jim_ListAppendElement(interp, listObjPtr, Jim_NewStringObj(interp, environ[i], equals - environ[i]));
- Jim_ListAppendElement(interp, listObjPtr, Jim_NewStringObj(interp, equals + 1, -1));
- }
- }
-
- Jim_SetResult(interp, listObjPtr);
- return JIM_OK;
- }
-
- if (argc != 2) {
- Jim_WrongNumArgs(interp, 1, argv, "varName");
- return JIM_ERR;
- }
- key = Jim_GetString(argv[1], NULL);
- val = getenv(key);
- if (val == NULL) {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp),
- "environment variable \"",
- key, "\" does not exist", NULL);
- return JIM_ERR;
- }
- Jim_SetResult(interp, Jim_NewStringObj(interp, val, -1));
- return JIM_OK;
-}
-
-/* [source] */
-static int Jim_SourceCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int retval;
-
- if (argc != 2) {
- Jim_WrongNumArgs(interp, 1, argv, "fileName");
- return JIM_ERR;
- }
- retval = Jim_EvalFile(interp, Jim_GetString(argv[1], NULL));
- if (retval == JIM_ERR) {
- return JIM_ERR_ADDSTACK;
- }
- if (retval == JIM_RETURN)
- return JIM_OK;
- return retval;
-}
-
-/* [lreverse] */
-static int Jim_LreverseCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- Jim_Obj *revObjPtr, **ele;
- int len;
-
- if (argc != 2) {
- Jim_WrongNumArgs(interp, 1, argv, "list");
- return JIM_ERR;
- }
- JimListGetElements(interp, argv[1], &len, &ele);
- len--;
- revObjPtr = Jim_NewListObj(interp, NULL, 0);
- while (len >= 0)
- ListAppendElement(revObjPtr, ele[len--]);
- Jim_SetResult(interp, revObjPtr);
- return JIM_OK;
-}
-
-static int JimRangeLen(jim_wide start, jim_wide end, jim_wide step)
-{
- jim_wide len;
-
- if (step == 0) return -1;
- if (start == end) return 0;
- else if (step > 0 && start > end) return -1;
- else if (step < 0 && end > start) return -1;
- len = end-start;
- if (len < 0) len = -len; /* abs(len) */
- if (step < 0) step = -step; /* abs(step) */
- len = 1 + ((len-1)/step);
- /* We can truncate safely to INT_MAX, the range command
- * will always return an error for a such long range
- * because Tcl lists can't be so long. */
- if (len > INT_MAX) len = INT_MAX;
- return (int)((len < 0) ? -1 : len);
-}
-
-/* [range] */
-static int Jim_RangeCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- jim_wide start = 0, end, step = 1;
- int len, i;
- Jim_Obj *objPtr;
-
- if (argc < 2 || argc > 4) {
- Jim_WrongNumArgs(interp, 1, argv, "?start? end ?step?");
- return JIM_ERR;
- }
- if (argc == 2) {
- if (Jim_GetWide(interp, argv[1], &end) != JIM_OK)
- return JIM_ERR;
- } else {
- if (Jim_GetWide(interp, argv[1], &start) != JIM_OK ||
- Jim_GetWide(interp, argv[2], &end) != JIM_OK)
- return JIM_ERR;
- if (argc == 4 && Jim_GetWide(interp, argv[3], &step) != JIM_OK)
- return JIM_ERR;
- }
- if ((len = JimRangeLen(start, end, step)) == -1) {
- Jim_SetResultString(interp, "Invalid (infinite?) range specified", -1);
- return JIM_ERR;
- }
- objPtr = Jim_NewListObj(interp, NULL, 0);
- for (i = 0; i < len; i++)
- ListAppendElement(objPtr, Jim_NewIntObj(interp, start + i*step));
- Jim_SetResult(interp, objPtr);
- return JIM_OK;
-}
-
-/* [rand] */
-static int Jim_RandCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- jim_wide min = 0, max =0, len, maxMul;
-
- if (argc < 1 || argc > 3) {
- Jim_WrongNumArgs(interp, 1, argv, "?min? max");
- return JIM_ERR;
- }
- if (argc == 1) {
- max = JIM_WIDE_MAX;
- } else if (argc == 2) {
- if (Jim_GetWide(interp, argv[1], &max) != JIM_OK)
- return JIM_ERR;
- } else if (argc == 3) {
- if (Jim_GetWide(interp, argv[1], &min) != JIM_OK ||
- Jim_GetWide(interp, argv[2], &max) != JIM_OK)
- return JIM_ERR;
- }
- len = max-min;
- if (len < 0) {
- Jim_SetResultString(interp, "Invalid arguments (max < min)", -1);
- return JIM_ERR;
- }
- maxMul = JIM_WIDE_MAX - (len ? (JIM_WIDE_MAX%len) : 0);
- while (1) {
- jim_wide r;
-
- JimRandomBytes(interp, &r, sizeof(jim_wide));
- if (r < 0 || r >= maxMul) continue;
- r = (len == 0) ? 0 : r%len;
- Jim_SetResult(interp, Jim_NewIntObj(interp, min + r));
- return JIM_OK;
- }
-}
-
-/* [package] */
-static int Jim_PackageCoreCommand(Jim_Interp *interp, int argc,
- Jim_Obj *const *argv)
-{
- int option;
- const char *options[] = {
- "require", "provide", NULL
- };
- enum {OPT_REQUIRE, OPT_PROVIDE};
-
- if (argc < 2) {
- Jim_WrongNumArgs(interp, 1, argv, "option ?arguments ...?");
- return JIM_ERR;
- }
- if (Jim_GetEnum(interp, argv[1], options, &option, "option",
- JIM_ERRMSG) != JIM_OK)
- return JIM_ERR;
-
- if (option == OPT_REQUIRE) {
- int exact = 0;
- const char *ver;
-
- if (Jim_CompareStringImmediate(interp, argv[2], "-exact")) {
- exact = 1;
- argv++;
- argc--;
- }
- if (argc != 3 && argc != 4) {
- Jim_WrongNumArgs(interp, 2, argv, "?-exact? package ?version?");
- return JIM_ERR;
- }
- ver = Jim_PackageRequire(interp, Jim_GetString(argv[2], NULL),
- argc == 4 ? Jim_GetString(argv[3], NULL) : "",
- JIM_ERRMSG);
- if (ver == NULL)
- return JIM_ERR_ADDSTACK;
- Jim_SetResultString(interp, ver, -1);
- } else if (option == OPT_PROVIDE) {
- if (argc != 4) {
- Jim_WrongNumArgs(interp, 2, argv, "package version");
- return JIM_ERR;
- }
- return Jim_PackageProvide(interp, Jim_GetString(argv[2], NULL),
- Jim_GetString(argv[3], NULL), JIM_ERRMSG);
- }
- return JIM_OK;
-}
-
-static struct {
- const char *name;
- Jim_CmdProc cmdProc;
-} Jim_CoreCommandsTable[] = {
- {"set", Jim_SetCoreCommand},
- {"unset", Jim_UnsetCoreCommand},
- {"puts", Jim_PutsCoreCommand},
- {"+", Jim_AddCoreCommand},
- {"*", Jim_MulCoreCommand},
- {"-", Jim_SubCoreCommand},
- {"/", Jim_DivCoreCommand},
- {"incr", Jim_IncrCoreCommand},
- {"while", Jim_WhileCoreCommand},
- {"for", Jim_ForCoreCommand},
- {"foreach", Jim_ForeachCoreCommand},
- {"lmap", Jim_LmapCoreCommand},
- {"if", Jim_IfCoreCommand},
- {"switch", Jim_SwitchCoreCommand},
- {"list", Jim_ListCoreCommand},
- {"lindex", Jim_LindexCoreCommand},
- {"lset", Jim_LsetCoreCommand},
- {"llength", Jim_LlengthCoreCommand},
- {"lappend", Jim_LappendCoreCommand},
- {"linsert", Jim_LinsertCoreCommand},
- {"lsort", Jim_LsortCoreCommand},
- {"append", Jim_AppendCoreCommand},
- {"debug", Jim_DebugCoreCommand},
- {"eval", Jim_EvalCoreCommand},
- {"uplevel", Jim_UplevelCoreCommand},
- {"expr", Jim_ExprCoreCommand},
- {"break", Jim_BreakCoreCommand},
- {"continue", Jim_ContinueCoreCommand},
- {"proc", Jim_ProcCoreCommand},
- {"concat", Jim_ConcatCoreCommand},
- {"return", Jim_ReturnCoreCommand},
- {"upvar", Jim_UpvarCoreCommand},
- {"global", Jim_GlobalCoreCommand},
- {"string", Jim_StringCoreCommand},
- {"time", Jim_TimeCoreCommand},
- {"exit", Jim_ExitCoreCommand},
- {"catch", Jim_CatchCoreCommand},
- {"ref", Jim_RefCoreCommand},
- {"getref", Jim_GetrefCoreCommand},
- {"setref", Jim_SetrefCoreCommand},
- {"finalize", Jim_FinalizeCoreCommand},
- {"collect", Jim_CollectCoreCommand},
- {"rename", Jim_RenameCoreCommand},
- {"dict", Jim_DictCoreCommand},
- {"load", Jim_LoadCoreCommand},
- {"subst", Jim_SubstCoreCommand},
- {"info", Jim_InfoCoreCommand},
- {"split", Jim_SplitCoreCommand},
- {"join", Jim_JoinCoreCommand},
- {"format", Jim_FormatCoreCommand},
- {"scan", Jim_ScanCoreCommand},
- {"error", Jim_ErrorCoreCommand},
- {"lrange", Jim_LrangeCoreCommand},
- {"env", Jim_EnvCoreCommand},
- {"source", Jim_SourceCoreCommand},
- {"lreverse", Jim_LreverseCoreCommand},
- {"range", Jim_RangeCoreCommand},
- {"rand", Jim_RandCoreCommand},
- {"package", Jim_PackageCoreCommand},
- {"tailcall", Jim_TailcallCoreCommand},
- {NULL, NULL},
-};
-
-/* Some Jim core command is actually a procedure written in Jim itself. */
-static void Jim_RegisterCoreProcedures(Jim_Interp *interp)
-{
- Jim_Eval(interp, (char*)
-"proc lambda {arglist args} {\n"
-" set name [ref {} function lambdaFinalizer]\n"
-" uplevel 1 [list proc $name $arglist {expand}$args]\n"
-" return $name\n"
-"}\n"
-"proc lambdaFinalizer {name val} {\n"
-" rename $name {}\n"
-"}\n"
-);
-}
-
-void Jim_RegisterCoreCommands(Jim_Interp *interp)
-{
- int i = 0;
-
- while (Jim_CoreCommandsTable[i].name != NULL) {
- Jim_CreateCommand(interp,
- Jim_CoreCommandsTable[i].name,
- Jim_CoreCommandsTable[i].cmdProc,
- NULL, NULL);
- i++;
- }
- Jim_RegisterCoreProcedures(interp);
-}
-
-/* -----------------------------------------------------------------------------
- * Interactive prompt
- * ---------------------------------------------------------------------------*/
-void Jim_PrintErrorMessage(Jim_Interp *interp)
-{
- int len, i;
-
- if (*interp->errorFileName) {
- Jim_fprintf(interp, interp->cookie_stderr, "Runtime error, file \"%s\", line %d:" JIM_NL " ",
- interp->errorFileName, interp->errorLine);
- }
- Jim_fprintf(interp,interp->cookie_stderr, "%s" JIM_NL,
- Jim_GetString(interp->result, NULL));
- Jim_ListLength(interp, interp->stackTrace, &len);
- for (i = len-3; i >= 0; i-= 3) {
- Jim_Obj *objPtr=NULL;
- const char *proc, *file, *line;
-
- Jim_ListIndex(interp, interp->stackTrace, i, &objPtr, JIM_NONE);
- proc = Jim_GetString(objPtr, NULL);
- Jim_ListIndex(interp, interp->stackTrace, i + 1, &objPtr,
- JIM_NONE);
- file = Jim_GetString(objPtr, NULL);
- Jim_ListIndex(interp, interp->stackTrace, i + 2, &objPtr,
- JIM_NONE);
- line = Jim_GetString(objPtr, NULL);
- if (*proc) {
- Jim_fprintf(interp, interp->cookie_stderr,
- "in procedure '%s' ", proc);
- }
- if (*file) {
- Jim_fprintf(interp, interp->cookie_stderr,
- "called at file \"%s\", line %s",
- file, line);
- }
- if (*file || *proc) {
- Jim_fprintf(interp, interp->cookie_stderr, JIM_NL);
- }
- }
-}
-
-int Jim_InteractivePrompt(Jim_Interp *interp)
-{
- int retcode = JIM_OK;
- Jim_Obj *scriptObjPtr;
-
- Jim_fprintf(interp,interp->cookie_stdout, "Welcome to Jim version %d.%d, "
- "Copyright (c) 2005-8 Salvatore Sanfilippo" JIM_NL,
- JIM_VERSION / 100, JIM_VERSION % 100);
- Jim_SetVariableStrWithStr(interp, "jim_interactive", "1");
- while (1) {
- char buf[1024];
- const char *result;
- const char *retcodestr[] = {
- "ok", "error", "return", "break", "continue", "eval", "exit"
- };
- int reslen;
-
- if (retcode != 0) {
- if (retcode >= 2 && retcode <= 6)
- Jim_fprintf(interp,interp->cookie_stdout, "[%s] . ", retcodestr[retcode]);
- else
- Jim_fprintf(interp,interp->cookie_stdout, "[%d] . ", retcode);
- } else
- Jim_fprintf(interp, interp->cookie_stdout, ". ");
- Jim_fflush(interp, interp->cookie_stdout);
- scriptObjPtr = Jim_NewStringObj(interp, "", 0);
- Jim_IncrRefCount(scriptObjPtr);
- while (1) {
- const char *str;
- char state;
- int len;
-
- if (Jim_fgets(interp, buf, 1024, interp->cookie_stdin) == NULL) {
- Jim_DecrRefCount(interp, scriptObjPtr);
- goto out;
- }
- Jim_AppendString(interp, scriptObjPtr, buf, -1);
- str = Jim_GetString(scriptObjPtr, &len);
- if (Jim_ScriptIsComplete(str, len, &state))
- break;
- Jim_fprintf(interp, interp->cookie_stdout, "%c> ", state);
- Jim_fflush(interp, interp->cookie_stdout);
- }
- retcode = Jim_EvalObj(interp, scriptObjPtr);
- Jim_DecrRefCount(interp, scriptObjPtr);
- result = Jim_GetString(Jim_GetResult(interp), &reslen);
- if (retcode == JIM_ERR) {
- Jim_PrintErrorMessage(interp);
- } else if (retcode == JIM_EXIT) {
- exit(Jim_GetExitCode(interp));
- } else {
- if (reslen) {
- Jim_fwrite(interp, result, 1, reslen, interp->cookie_stdout);
- Jim_fprintf(interp,interp->cookie_stdout, JIM_NL);
- }
- }
- }
-out:
- return 0;
-}
-
-/* -----------------------------------------------------------------------------
- * Jim's idea of STDIO..
- * ---------------------------------------------------------------------------*/
-
-int Jim_fprintf(Jim_Interp *interp, void *cookie, const char *fmt, ...)
-{
- int r;
-
- va_list ap;
- va_start(ap,fmt);
- r = Jim_vfprintf(interp, cookie, fmt,ap);
- va_end(ap);
- return r;
-}
-
-int Jim_vfprintf(Jim_Interp *interp, void *cookie, const char *fmt, va_list ap)
-{
- if ((interp == NULL) || (interp->cb_vfprintf == NULL)) {
- errno = ENOTSUP;
- return -1;
- }
- return (*(interp->cb_vfprintf))(cookie, fmt, ap);
-}
-
-size_t Jim_fwrite(Jim_Interp *interp, const void *ptr, size_t size, size_t n, void *cookie)
-{
- if ((interp == NULL) || (interp->cb_fwrite == NULL)) {
- errno = ENOTSUP;
- return 0;
- }
- return (*(interp->cb_fwrite))(ptr, size, n, cookie);
-}
-
-size_t Jim_fread(Jim_Interp *interp, void *ptr, size_t size, size_t n, void *cookie)
-{
- if ((interp == NULL) || (interp->cb_fread == NULL)) {
- errno = ENOTSUP;
- return 0;
- }
- return (*(interp->cb_fread))(ptr, size, n, cookie);
-}
-
-int Jim_fflush(Jim_Interp *interp, void *cookie)
-{
- if ((interp == NULL) || (interp->cb_fflush == NULL)) {
- /* pretend all is well */
- return 0;
- }
- return (*(interp->cb_fflush))(cookie);
-}
-
-char* Jim_fgets(Jim_Interp *interp, char *s, int size, void *cookie)
-{
- if ((interp == NULL) || (interp->cb_fgets == NULL)) {
- errno = ENOTSUP;
- return NULL;
- }
- return (*(interp->cb_fgets))(s, size, cookie);
-}
-Jim_Nvp *
-Jim_Nvp_name2value_simple(const Jim_Nvp *p, const char *name)
-{
- while (p->name) {
- if (0 == strcmp(name, p->name)) {
- break;
- }
- p++;
- }
- return ((Jim_Nvp *)(p));
-}
-
-Jim_Nvp *
-Jim_Nvp_name2value_nocase_simple(const Jim_Nvp *p, const char *name)
-{
- while (p->name) {
- if (0 == strcasecmp(name, p->name)) {
- break;
- }
- p++;
- }
- return ((Jim_Nvp *)(p));
-}
-
-int
-Jim_Nvp_name2value_obj(Jim_Interp *interp,
- const Jim_Nvp *p,
- Jim_Obj *o,
- Jim_Nvp **result)
-{
- return Jim_Nvp_name2value(interp, p, Jim_GetString(o, NULL), result);
-}
-
-
-int
-Jim_Nvp_name2value(Jim_Interp *interp,
- const Jim_Nvp *_p,
- const char *name,
- Jim_Nvp **result)
-{
- const Jim_Nvp *p;
-
- p = Jim_Nvp_name2value_simple(_p, name);
-
- /* result */
- if (result) {
- *result = (Jim_Nvp *)(p);
- }
-
- /* found? */
- if (p->name) {
- return JIM_OK;
- } else {
- return JIM_ERR;
- }
-}
-
-int
-Jim_Nvp_name2value_obj_nocase(Jim_Interp *interp, const Jim_Nvp *p, Jim_Obj *o, Jim_Nvp **puthere)
-{
- return Jim_Nvp_name2value_nocase(interp, p, Jim_GetString(o, NULL), puthere);
-}
-
-int
-Jim_Nvp_name2value_nocase(Jim_Interp *interp, const Jim_Nvp *_p, const char *name, Jim_Nvp **puthere)
-{
- const Jim_Nvp *p;
-
- p = Jim_Nvp_name2value_nocase_simple(_p, name);
-
- if (puthere) {
- *puthere = (Jim_Nvp *)(p);
- }
- /* found */
- if (p->name) {
- return JIM_OK;
- } else {
- return JIM_ERR;
- }
-}
-
-
-int
-Jim_Nvp_value2name_obj(Jim_Interp *interp, const Jim_Nvp *p, Jim_Obj *o, Jim_Nvp **result)
-{
- int e;;
- jim_wide w;
-
- e = Jim_GetWide(interp, o, &w);
- if (e != JIM_OK) {
- return e;
- }
-
- return Jim_Nvp_value2name(interp, p, w, result);
-}
-
-Jim_Nvp *
-Jim_Nvp_value2name_simple(const Jim_Nvp *p, int value)
-{
- while (p->name) {
- if (value == p->value) {
- break;
- }
- p++;
- }
- return ((Jim_Nvp *)(p));
-}
-
-
-int
-Jim_Nvp_value2name(Jim_Interp *interp, const Jim_Nvp *_p, int value, Jim_Nvp **result)
-{
- const Jim_Nvp *p;
-
- p = Jim_Nvp_value2name_simple(_p, value);
-
- if (result) {
- *result = (Jim_Nvp *)(p);
- }
-
- if (p->name) {
- return JIM_OK;
- } else {
- return JIM_ERR;
- }
-}
-
-
-int
-Jim_GetOpt_Setup(Jim_GetOptInfo *p, Jim_Interp *interp, int argc, Jim_Obj * const * argv)
-{
- memset(p, 0, sizeof(*p));
- p->interp = interp;
- p->argc = argc;
- p->argv = argv;
-
- return JIM_OK;
-}
-
-void
-Jim_GetOpt_Debug(Jim_GetOptInfo *p)
-{
- int x;
-
- Jim_fprintf(p->interp, p->interp->cookie_stderr, "---args---\n");
- for (x = 0 ; x < p->argc ; x++) {
- Jim_fprintf(p->interp, p->interp->cookie_stderr,
- "%2d) %s\n",
- x,
- Jim_GetString(p->argv[x], NULL));
- }
- Jim_fprintf(p->interp, p->interp->cookie_stderr, "-------\n");
-}
-
-
-int
-Jim_GetOpt_Obj(Jim_GetOptInfo *goi, Jim_Obj **puthere)
-{
- Jim_Obj *o;
-
- o = NULL; // failure
- if (goi->argc) {
- // success
- o = goi->argv[0];
- goi->argc -= 1;
- goi->argv += 1;
- }
- if (puthere) {
- *puthere = o;
- }
- if (o != NULL) {
- return JIM_OK;
- } else {
- return JIM_ERR;
- }
-}
-
-int
-Jim_GetOpt_String(Jim_GetOptInfo *goi, char **puthere, int *len)
-{
- int r;
- Jim_Obj *o;
- const char *cp;
-
-
- r = Jim_GetOpt_Obj(goi, &o);
- if (r == JIM_OK) {
- cp = Jim_GetString(o, len);
- if (puthere) {
- /* remove const */
- *puthere = (char *)(cp);
- }
- }
- return r;
-}
-
-int
-Jim_GetOpt_Double(Jim_GetOptInfo *goi, double *puthere)
-{
- int r;
- Jim_Obj *o;
- double _safe;
-
- if (puthere == NULL) {
- puthere = &_safe;
- }
-
- r = Jim_GetOpt_Obj(goi, &o);
- if (r == JIM_OK) {
- r = Jim_GetDouble(goi->interp, o, puthere);
- if (r != JIM_OK) {
- Jim_SetResult_sprintf(goi->interp,
- "not a number: %s",
- Jim_GetString(o, NULL));
- }
- }
- return r;
-}
-
-int
-Jim_GetOpt_Wide(Jim_GetOptInfo *goi, jim_wide *puthere)
-{
- int r;
- Jim_Obj *o;
- jim_wide _safe;
-
- if (puthere == NULL) {
- puthere = &_safe;
- }
-
- r = Jim_GetOpt_Obj(goi, &o);
- if (r == JIM_OK) {
- r = Jim_GetWide(goi->interp, o, puthere);
- }
- return r;
-}
-
-int Jim_GetOpt_Nvp(Jim_GetOptInfo *goi,
- const Jim_Nvp *nvp,
- Jim_Nvp **puthere)
-{
- Jim_Nvp *_safe;
- Jim_Obj *o;
- int e;
-
- if (puthere == NULL) {
- puthere = &_safe;
- }
-
- e = Jim_GetOpt_Obj(goi, &o);
- if (e == JIM_OK) {
- e = Jim_Nvp_name2value_obj(goi->interp,
- nvp,
- o,
- puthere);
- }
-
- return e;
-}
-
-void
-Jim_GetOpt_NvpUnknown(Jim_GetOptInfo *goi,
- const Jim_Nvp *nvptable,
- int hadprefix)
-{
- if (hadprefix) {
- Jim_SetResult_NvpUnknown(goi->interp,
- goi->argv[-2],
- goi->argv[-1],
- nvptable);
- } else {
- Jim_SetResult_NvpUnknown(goi->interp,
- NULL,
- goi->argv[-1],
- nvptable);
- }
-}
-
-
-int
-Jim_GetOpt_Enum(Jim_GetOptInfo *goi,
- const char * const * lookup,
- int *puthere)
-{
- int _safe;
- Jim_Obj *o;
- int e;
-
- if (puthere == NULL) {
- puthere = &_safe;
- }
- e = Jim_GetOpt_Obj(goi, &o);
- if (e == JIM_OK) {
- e = Jim_GetEnum(goi->interp,
- o,
- lookup,
- puthere,
- "option",
- JIM_ERRMSG);
- }
- return e;
-}
-
-
-
-int
-Jim_SetResult_sprintf(Jim_Interp *interp, const char *fmt,...)
-{
- va_list ap;
- char *buf;
-
- va_start(ap,fmt);
- buf = jim_vasprintf(fmt, ap);
- va_end(ap);
- if (buf) {
- Jim_SetResultString(interp, buf, -1);
- jim_vasprintf_done(buf);
- }
- return JIM_OK;
-}
-
-
-void
-Jim_SetResult_NvpUnknown(Jim_Interp *interp,
- Jim_Obj *param_name,
- Jim_Obj *param_value,
- const Jim_Nvp *nvp)
-{
- if (param_name) {
- Jim_SetResult_sprintf(interp,
- "%s: Unknown: %s, try one of: ",
- Jim_GetString(param_name, NULL),
- Jim_GetString(param_value, NULL));
- } else {
- Jim_SetResult_sprintf(interp,
- "Unknown param: %s, try one of: ",
- Jim_GetString(param_value, NULL));
- }
- while (nvp->name) {
- const char *a;
- const char *b;
-
- if ((nvp + 1)->name) {
- a = nvp->name;
- b = ", ";
- } else {
- a = "or ";
- b = nvp->name;
- }
- Jim_AppendStrings(interp,
- Jim_GetResult(interp),
- a, b, NULL);
- nvp++;
- }
-}
-
-
-static Jim_Obj *debug_string_obj;
-
-const char *
-Jim_Debug_ArgvString(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
-{
- int x;
-
- if (debug_string_obj) {
- Jim_FreeObj(interp, debug_string_obj);
- }
-
- debug_string_obj = Jim_NewEmptyStringObj(interp);
- for (x = 0 ; x < argc ; x++) {
- Jim_AppendStrings(interp,
- debug_string_obj,
- Jim_GetString(argv[x], NULL),
- " ",
- NULL);
- }
-
- return Jim_GetString(debug_string_obj, NULL);
-}
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